Start script generated by ServerPackCreator dev. To change the launch settings of this server, such as JVM args / flags, Minecraft version, modloader version etc., edit the variables.txt-file. Detected 1.21.11 - Java 21 Running NeoForge checks and setup... Generating user_jvm_args.txt from variables... Edit JAVA_ARGS in your variables.txt. Do not edit user_jvm_args.txt directly! Manually made changes to user_jvm_args.txt will be lost in the nether! server.jar present. Starting server... Minecraft version: 1.21.11 Modloader: NeoForge Modloader version: 21.11.45 LegacyFabric Installer Version: 1.1.1 Fabric Installer Version: 1.1.2 Quilt Installer Version: 0.15.1 Java Args: Additional Args: -Dlog4j2.formatMsgNoLookups=true SSJ Forge Args: -Djava.security.manager=allow Java Path: /opt/java-21/bin/java Wait For User Input: false Run Command: /opt/java-21/bin/java -Dlog4j2.formatMsgNoLookups=true @user_jvm_args.txt -jar server.jar --installer-force --installer 21.11.45 nogui Java version: openjdk version "21.0.12.1" 2026-08-18 LTS OpenJDK Runtime Environment Temurin-21.0.12.1+1 (build 21.0.12.1+1-LTS) OpenJDK 64-Bit Server VM Temurin-21.0.12.1+1 (build 21.0.12.1+1-LTS, mixed mode, sharing) Failed to compute version of installer: neoforge-21.11.45-installer.jar 2026-09-25T10:41:47.829335153Z main WARN Advanced terminal features are not available in this environment [10:41:47] [main/INFO] [ne.ne.fm.st.Entrypoint/]: JVM Uptime at startup: 186ms [10:41:47] [main/INFO] [ne.ne.fm.lo.FMLLoader/]: Starting FancyModLoader version 10.0.36 (DEDICATED_SERVER in PROD) [10:41:47] [main/INFO] [ne.ne.fm.lo.FMLLoader/]: Game directory: /srv/pack [10:41:48] [main/INFO] [ne.ne.fm.lo.EarlyServiceDiscovery/]: Found 2 early service jars (out of 71) in 31ms [10:41:48] [main/INFO] [ne.ne.fm.lo.FMLLoader/]: Loading FML Early Services: [10:41:48] [main/INFO] [ne.ne.fm.lo.FMLLoader/]: - libraries/net/neoforged/fancymodloader/loader/10.0.36/loader-10.0.36.jar [10:41:48] [main/INFO] [ne.ne.fm.lo.FMLLoader/]: - libraries/net/neoforged/fancymodloader/earlydisplay/10.0.36/earlydisplay-10.0.36.jar [10:41:48] [main/INFO] [ne.ne.fm.lo.ImmediateWindowHandler/]: Not loading early display in headless mode. [10:41:48] [main/INFO] [ne.ne.fm.lo.mo.lo.GameLocator/]: Failed to find common Minecraft classes and resources on the classpath. Assuming we're launching production. [10:41:48] [main/INFO] [ne.ne.fm.lo.mo.lo.JarInJarDependencyLocator/]: Found 10 dependencies adding them to mods collection [10:41:48] [main/INFO] [ne.ne.fm.lo.mo.ModDiscoverer/]: Mod List: Name Version (Mod Id) Architectury 19.0.1 (architectury) Health Indicators 21.11.1 (healthindicators) Minecraft 1.21.11 (minecraft) NeoForge 21.11.45 (neoforge) YetAnotherConfigLib 3.8.2+1.21.11-neoforge (yet_another_config_lib_v3) [10:41:48] [main/INFO] [mixin/]: SpongePowered MIXIN Subsystem Version=0.8.7 Source=file:/srv/pack/libraries/net/fabricmc/sponge-mixin/0.16.5+mixin.0.8.7/sponge-mixin-0.16.5+mixin.0.8.7.jar Service=FML Env=SERVER [10:41:48] [main/INFO] [ne.ne.fm.lo.FMLLoader/]: Loading FML Plugins: [10:41:48] [main/INFO] [ne.ne.fm.lo.FMLLoader/]: - mods/yet_another_config_lib_v3-3.8.2+1.21.11-neoforge.jar > json-0.2.1.jar [10:41:48] [main/INFO] [ne.ne.fm.lo.FMLLoader/]: - mods/yet_another_config_lib_v3-3.8.2+1.21.11-neoforge.jar > imageio-webp-3.12.0.jar [10:41:48] [main/INFO] [ne.ne.fm.lo.FMLLoader/]: - mods/yet_another_config_lib_v3-3.8.2+1.21.11-neoforge.jar > common-image-3.12.0.jar [10:41:48] [main/INFO] [ne.ne.fm.lo.FMLLoader/]: - mods/yet_another_config_lib_v3-3.8.2+1.21.11-neoforge.jar > common-io-3.12.0.jar [10:41:48] [main/INFO] [ne.ne.fm.lo.FMLLoader/]: - mods/yet_another_config_lib_v3-3.8.2+1.21.11-neoforge.jar > gson-0.2.1.jar [10:41:48] [main/INFO] [ne.ne.fm.lo.FMLLoader/]: - mods/yet_another_config_lib_v3-3.8.2+1.21.11-neoforge.jar > imageio-core-3.12.0.jar [10:41:48] [main/INFO] [ne.ne.fm.lo.FMLLoader/]: - mods/yet_another_config_lib_v3-3.8.2+1.21.11-neoforge.jar > common-lang-3.12.0.jar [10:41:48] [main/INFO] [ne.ne.fm.lo.FMLLoader/]: - ~libraries/net/neoforged/neoforge/21.11.45/neoforge-21.11.45-universal.jar > net.neoforged.neoforge-coremods-21.11.45.jar [10:41:48] [main/INFO] [ne.ne.fm.lo.FMLLoader/]: - mods/yet_another_config_lib_v3-3.8.2+1.21.11-neoforge.jar > imageio-metadata-3.12.0.jar [10:41:48] [main/INFO] [ne.ne.fm.lo.FMLLoader/]: Building game content classloader: - architectury (jar(mods/architectury-19.0.1-neoforge.jar)) - healthindicators (jar(mods/HealthIndicators-21.11.1.jar)) - minecraft (jar(~libraries/net/neoforged/minecraft-server-patched/21.11.45/minecraft-server-patched-21.11.45.jar)) - mixinextras.neoforge (jar(~libraries/net/neoforged/neoforge/21.11.45/neoforge-21.11.45-universal.jar > mixinextras-neoforge-0.5.3.jar)) - neoforge (jar(~libraries/net/neoforged/neoforge/21.11.45/neoforge-21.11.45-universal.jar)) - net.neoforged.fml.generated (empty(VirtualJar/net.neoforged.fml.generated)) - yet_another_config_lib_v3 (jar(mods/yet_another_config_lib_v3-3.8.2+1.21.11-neoforge.jar)) [10:41:48] [main/INFO] [ne.ne.fm.lo.FMLLoader/]: Built game content classloader in 29ms [10:41:49] [main/WARN] [mixin/]: Reference map 'HealthIndicators-common-common-refmap.json' for neoforge-healthindicators.mixins.json could not be read. If this is a development environment you can ignore this message [10:41:49] [main/WARN] [mixin/]: Reference map 'yet_another_config_lib_v3.refmap.json' for yacl.mixins.json could not be read. If this is a development environment you can ignore this message [10:41:50] [main/INFO] [MixinExtras|Service/]: Initializing MixinExtras via com.llamalad7.mixinextras.service.MixinExtrasServiceImpl(version=0.5.3). [10:41:58] [modloading-worker-0/INFO] [ne.ne.ne.co.NeoForgeMod/NEOFORGE-MOD]: NeoForge mod loading, version 21.11.45, for MC 1.21.11 [10:41:58] [modloading-worker-0/ERROR] [ne.ne.fm.ja.FMLModContainer/LOADING]: Failed to create mod instance. ModID: healthindicators, class neoforge.io.github.adytech99.healthindicators.neoforge.HealthIndicatorsNeoForge java.lang.NoClassDefFoundError: net/minecraft/client/Minecraft at TRANSFORMER/healthindicators@21.11.1/neoforge.io.github.adytech99.healthindicators.neoforge.HealthIndicatorsNeoForge.(HealthIndicatorsNeoForge.java:32) ~[?:?] {} at java.base/jdk.internal.misc.Unsafe.ensureClassInitialized0(Native Method) ~[?:?] {} at java.base/jdk.internal.misc.Unsafe.ensureClassInitialized(Unsafe.java:1160) ~[?:?] {} at java.base/jdk.internal.reflect.MethodHandleAccessorFactory.ensureClassInitialized(MethodHandleAccessorFactory.java:301) ~[?:?] {} at java.base/jdk.internal.reflect.MethodHandleAccessorFactory.newConstructorAccessor(MethodHandleAccessorFactory.java:104) ~[?:?] {} at java.base/jdk.internal.reflect.ReflectionFactory.newConstructorAccessor(ReflectionFactory.java:200) ~[?:?] {} at java.base/java.lang.reflect.Constructor.acquireConstructorAccessor(Constructor.java:549) ~[?:?] {} at java.base/java.lang.reflect.Constructor.newInstanceWithCaller(Constructor.java:499) ~[?:?] {} at java.base/java.lang.reflect.Constructor.newInstance(Constructor.java:486) ~[?:?] {} at net.neoforged.fml.javafmlmod.FMLModContainer.constructMod(FMLModContainer.java:118) ~[loader-10.0.36.jar:10.0] {} at net.neoforged.fml.ModLoader.lambda$constructMods$0(ModLoader.java:125) ~[loader-10.0.36.jar:10.0] {} at net.neoforged.fml.ModLoader.lambda$dispatchParallelTask$4(ModLoader.java:203) ~[loader-10.0.36.jar:10.0] {} at java.base/java.util.concurrent.CompletableFuture.uniHandle(CompletableFuture.java:934) [?:?] {} at java.base/java.util.concurrent.CompletableFuture$UniHandle.tryFire(CompletableFuture.java:911) [?:?] {} at java.base/java.util.concurrent.CompletableFuture$Completion.exec(CompletableFuture.java:483) [?:?] {} at java.base/java.util.concurrent.ForkJoinTask.doExec(ForkJoinTask.java:387) [?:?] {} at java.base/java.util.concurrent.ForkJoinPool$WorkQueue.topLevelExec(ForkJoinPool.java:1312) [?:?] {} at java.base/java.util.concurrent.ForkJoinPool.scan(ForkJoinPool.java:1843) [?:?] {} at java.base/java.util.concurrent.ForkJoinPool.runWorker(ForkJoinPool.java:1808) [?:?] {} at java.base/java.util.concurrent.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:188) [?:?] {} Caused by: java.lang.ClassNotFoundException: net.minecraft.client.Minecraft at java.base/java.net.URLClassLoader.findClass(URLClassLoader.java:445) ~[?:?] {} at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:593) ~[?:?] {} at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:526) ~[?:?] {} at net.neoforged.fml.classloading.ModuleClassLoader.loadClass(ModuleClassLoader.java:247) ~[loader-10.0.36.jar:10.0] {} at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:526) ~[?:?] {} ... 20 more 2026-09-25T10:41:58.321375178Z modloading-worker-0 ERROR An exception occurred processing Appender File org.apache.logging.log4j.core.appender.AppenderLoggingException: java.lang.NoClassDefFoundError: Could not initialize class neoforge.io.github.adytech99.healthindicators.neoforge.HealthIndicatorsNeoForge at org.apache.logging.log4j.core.config.AppenderControl.tryCallAppender(AppenderControl.java:164) at org.apache.logging.log4j.core.config.AppenderControl.callAppender0(AppenderControl.java:133) at org.apache.logging.log4j.core.config.AppenderControl.callAppenderPreventRecursion(AppenderControl.java:124) at org.apache.logging.log4j.core.config.AppenderControl.callAppender(AppenderControl.java:88) at org.apache.logging.log4j.core.config.LoggerConfig.callAppenders(LoggerConfig.java:711) at org.apache.logging.log4j.core.config.LoggerConfig.processLogEvent(LoggerConfig.java:669) at org.apache.logging.log4j.core.config.LoggerConfig.log(LoggerConfig.java:645) at org.apache.logging.log4j.core.config.LoggerConfig.log(LoggerConfig.java:589) at org.apache.logging.log4j.core.config.AwaitCompletionReliabilityStrategy.log(AwaitCompletionReliabilityStrategy.java:92) at org.apache.logging.log4j.core.Logger.log(Logger.java:187) at org.apache.logging.log4j.spi.AbstractLogger.tryLogMessage(AbstractLogger.java:2970) at org.apache.logging.log4j.spi.AbstractLogger.logMessageTrackRecursion(AbstractLogger.java:2922) at org.apache.logging.log4j.spi.AbstractLogger.logMessageSafely(AbstractLogger.java:2904) at org.apache.logging.log4j.spi.AbstractLogger.logMessage(AbstractLogger.java:2697) at org.apache.logging.log4j.spi.AbstractLogger.logIfEnabled(AbstractLogger.java:2449) at org.apache.logging.log4j.spi.AbstractLogger.error(AbstractLogger.java:895) at net.neoforged.fml.javafmlmod.FMLModContainer.constructMod(FMLModContainer.java:123) at net.neoforged.fml.ModLoader.lambda$constructMods$0(ModLoader.java:125) at net.neoforged.fml.ModLoader.lambda$dispatchParallelTask$4(ModLoader.java:203) at java.base/java.util.concurrent.CompletableFuture.uniHandle(CompletableFuture.java:934) at java.base/java.util.concurrent.CompletableFuture$UniHandle.tryFire(CompletableFuture.java:911) at java.base/java.util.concurrent.CompletableFuture$Completion.exec(CompletableFuture.java:483) at java.base/java.util.concurrent.ForkJoinTask.doExec(ForkJoinTask.java:387) at java.base/java.util.concurrent.ForkJoinPool$WorkQueue.topLevelExec(ForkJoinPool.java:1312) at java.base/java.util.concurrent.ForkJoinPool.scan(ForkJoinPool.java:1843) at java.base/java.util.concurrent.ForkJoinPool.runWorker(ForkJoinPool.java:1808) at java.base/java.util.concurrent.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:188) Caused by: java.lang.NoClassDefFoundError: Could not initialize class neoforge.io.github.adytech99.healthindicators.neoforge.HealthIndicatorsNeoForge at java.base/java.lang.Class.forName0(Native Method) at java.base/java.lang.Class.forName(Class.java:536) at java.base/java.lang.Class.forName(Class.java:515) at org.apache.logging.log4j.util.LoaderUtil.loadClass(LoaderUtil.java:212) at org.apache.logging.log4j.core.pattern.ThrowableExtendedStackTraceRenderer.lambda$static$1(ThrowableExtendedStackTraceRenderer.java:196) at org.apache.logging.log4j.core.pattern.ThrowableExtendedStackTraceRenderer$ExtendedContext.loadClass(ThrowableExtendedStackTraceRenderer.java:180) at org.apache.logging.log4j.core.pattern.ThrowableExtendedStackTraceRenderer$ExtendedContext.createClassResourceInfoByName(ThrowableExtendedStackTraceRenderer.java:166) at org.apache.logging.log4j.core.pattern.ThrowableExtendedStackTraceRenderer$ExtendedContext.ofThrowable(ThrowableExtendedStackTraceRenderer.java:96) at org.apache.logging.log4j.core.pattern.ThrowableExtendedStackTraceRenderer$ExtendedContext.access$000(ThrowableExtendedStackTraceRenderer.java:81) at org.apache.logging.log4j.core.pattern.ThrowableExtendedStackTraceRenderer.createContext(ThrowableExtendedStackTraceRenderer.java:43) at org.apache.logging.log4j.core.pattern.ThrowableExtendedStackTraceRenderer.createContext(ThrowableExtendedStackTraceRenderer.java:34) at org.apache.logging.log4j.core.pattern.ThrowableStackTraceRenderer.renderThrowable(ThrowableStackTraceRenderer.java:55) at org.apache.logging.log4j.core.pattern.ThrowablePatternConverter.format(ThrowablePatternConverter.java:130) at org.apache.logging.log4j.core.layout.PatternLayout$NoFormatPatternSerializer.toSerializable(PatternLayout.java:354) at org.apache.logging.log4j.core.layout.PatternLayout.toText(PatternLayout.java:251) at org.apache.logging.log4j.core.layout.PatternLayout.encode(PatternLayout.java:237) at org.apache.logging.log4j.core.layout.PatternLayout.encode(PatternLayout.java:57) at org.apache.logging.log4j.core.appender.AbstractOutputStreamAppender.directEncodeEvent(AbstractOutputStreamAppender.java:227) at org.apache.logging.log4j.core.appender.AbstractOutputStreamAppender.tryAppend(AbstractOutputStreamAppender.java:220) at org.apache.logging.log4j.core.appender.AbstractOutputStreamAppender.append(AbstractOutputStreamAppender.java:211) at org.apache.logging.log4j.core.appender.RollingRandomAccessFileAppender.append(RollingRandomAccessFileAppender.java:275) at org.apache.logging.log4j.core.config.AppenderControl.tryCallAppender(AppenderControl.java:160) ... 26 more Caused by: java.lang.ExceptionInInitializerError: Exception java.lang.NoClassDefFoundError: net/minecraft/client/Minecraft [in thread "modloading-worker-0"] at TRANSFORMER/healthindicators@21.11.1/neoforge.io.github.adytech99.healthindicators.neoforge.HealthIndicatorsNeoForge.(HealthIndicatorsNeoForge.java:32) at java.base/jdk.internal.misc.Unsafe.ensureClassInitialized0(Native Method) at java.base/jdk.internal.misc.Unsafe.ensureClassInitialized(Unsafe.java:1160) at java.base/jdk.internal.reflect.MethodHandleAccessorFactory.ensureClassInitialized(MethodHandleAccessorFactory.java:301) at java.base/jdk.internal.reflect.MethodHandleAccessorFactory.newConstructorAccessor(MethodHandleAccessorFactory.java:104) at java.base/jdk.internal.reflect.ReflectionFactory.newConstructorAccessor(ReflectionFactory.java:200) at java.base/java.lang.reflect.Constructor.acquireConstructorAccessor(Constructor.java:549) at java.base/java.lang.reflect.Constructor.newInstanceWithCaller(Constructor.java:499) at java.base/java.lang.reflect.Constructor.newInstance(Constructor.java:486) at net.neoforged.fml.javafmlmod.FMLModContainer.constructMod(FMLModContainer.java:118) ... 10 more 2026-09-25T10:41:58.332840812Z modloading-worker-0 ERROR An exception occurred processing Appender DebugFile org.apache.logging.log4j.core.appender.AppenderLoggingException: java.lang.NoClassDefFoundError: Could not initialize class neoforge.io.github.adytech99.healthindicators.neoforge.HealthIndicatorsNeoForge at org.apache.logging.log4j.core.config.AppenderControl.tryCallAppender(AppenderControl.java:164) at org.apache.logging.log4j.core.config.AppenderControl.callAppender0(AppenderControl.java:133) at org.apache.logging.log4j.core.config.AppenderControl.callAppenderPreventRecursion(AppenderControl.java:124) at org.apache.logging.log4j.core.config.AppenderControl.callAppender(AppenderControl.java:88) at org.apache.logging.log4j.core.config.LoggerConfig.callAppenders(LoggerConfig.java:711) at org.apache.logging.log4j.core.config.LoggerConfig.processLogEvent(LoggerConfig.java:669) at org.apache.logging.log4j.core.config.LoggerConfig.log(LoggerConfig.java:645) at org.apache.logging.log4j.core.config.LoggerConfig.log(LoggerConfig.java:589) at org.apache.logging.log4j.core.config.AwaitCompletionReliabilityStrategy.log(AwaitCompletionReliabilityStrategy.java:92) at org.apache.logging.log4j.core.Logger.log(Logger.java:187) at org.apache.logging.log4j.spi.AbstractLogger.tryLogMessage(AbstractLogger.java:2970) at org.apache.logging.log4j.spi.AbstractLogger.logMessageTrackRecursion(AbstractLogger.java:2922) at org.apache.logging.log4j.spi.AbstractLogger.logMessageSafely(AbstractLogger.java:2904) at org.apache.logging.log4j.spi.AbstractLogger.logMessage(AbstractLogger.java:2697) at org.apache.logging.log4j.spi.AbstractLogger.logIfEnabled(AbstractLogger.java:2449) at org.apache.logging.log4j.spi.AbstractLogger.error(AbstractLogger.java:895) at net.neoforged.fml.javafmlmod.FMLModContainer.constructMod(FMLModContainer.java:123) at net.neoforged.fml.ModLoader.lambda$constructMods$0(ModLoader.java:125) at net.neoforged.fml.ModLoader.lambda$dispatchParallelTask$4(ModLoader.java:203) at java.base/java.util.concurrent.CompletableFuture.uniHandle(CompletableFuture.java:934) at java.base/java.util.concurrent.CompletableFuture$UniHandle.tryFire(CompletableFuture.java:911) at java.base/java.util.concurrent.CompletableFuture$Completion.exec(CompletableFuture.java:483) at java.base/java.util.concurrent.ForkJoinTask.doExec(ForkJoinTask.java:387) at java.base/java.util.concurrent.ForkJoinPool$WorkQueue.topLevelExec(ForkJoinPool.java:1312) at java.base/java.util.concurrent.ForkJoinPool.scan(ForkJoinPool.java:1843) at java.base/java.util.concurrent.ForkJoinPool.runWorker(ForkJoinPool.java:1808) at java.base/java.util.concurrent.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:188) Caused by: java.lang.NoClassDefFoundError: Could not initialize class neoforge.io.github.adytech99.healthindicators.neoforge.HealthIndicatorsNeoForge at java.base/java.lang.Class.forName0(Native Method) at java.base/java.lang.Class.forName(Class.java:536) at java.base/java.lang.Class.forName(Class.java:515) at org.apache.logging.log4j.util.LoaderUtil.loadClass(LoaderUtil.java:212) at org.apache.logging.log4j.core.pattern.ThrowableExtendedStackTraceRenderer.lambda$static$1(ThrowableExtendedStackTraceRenderer.java:196) at org.apache.logging.log4j.core.pattern.ThrowableExtendedStackTraceRenderer$ExtendedContext.loadClass(ThrowableExtendedStackTraceRenderer.java:180) at org.apache.logging.log4j.core.pattern.ThrowableExtendedStackTraceRenderer$ExtendedContext.createClassResourceInfoByName(ThrowableExtendedStackTraceRenderer.java:166) at org.apache.logging.log4j.core.pattern.ThrowableExtendedStackTraceRenderer$ExtendedContext.ofThrowable(ThrowableExtendedStackTraceRenderer.java:96) at org.apache.logging.log4j.core.pattern.ThrowableExtendedStackTraceRenderer$ExtendedContext.access$000(ThrowableExtendedStackTraceRenderer.java:81) at org.apache.logging.log4j.core.pattern.ThrowableExtendedStackTraceRenderer.createContext(ThrowableExtendedStackTraceRenderer.java:43) at org.apache.logging.log4j.core.pattern.ThrowableExtendedStackTraceRenderer.createContext(ThrowableExtendedStackTraceRenderer.java:34) at org.apache.logging.log4j.core.pattern.ThrowableStackTraceRenderer.renderThrowable(ThrowableStackTraceRenderer.java:55) at org.apache.logging.log4j.core.pattern.ThrowablePatternConverter.format(ThrowablePatternConverter.java:130) at org.apache.logging.log4j.core.layout.PatternLayout$NoFormatPatternSerializer.toSerializable(PatternLayout.java:354) at org.apache.logging.log4j.core.layout.PatternLayout.toText(PatternLayout.java:251) at org.apache.logging.log4j.core.layout.PatternLayout.encode(PatternLayout.java:237) at org.apache.logging.log4j.core.layout.PatternLayout.encode(PatternLayout.java:57) at org.apache.logging.log4j.core.appender.AbstractOutputStreamAppender.directEncodeEvent(AbstractOutputStreamAppender.java:227) at org.apache.logging.log4j.core.appender.AbstractOutputStreamAppender.tryAppend(AbstractOutputStreamAppender.java:220) at org.apache.logging.log4j.core.appender.AbstractOutputStreamAppender.append(AbstractOutputStreamAppender.java:211) at org.apache.logging.log4j.core.appender.RollingRandomAccessFileAppender.append(RollingRandomAccessFileAppender.java:275) at org.apache.logging.log4j.core.config.AppenderControl.tryCallAppender(AppenderControl.java:160) ... 26 more Caused by: java.lang.ExceptionInInitializerError: Exception java.lang.NoClassDefFoundError: net/minecraft/client/Minecraft [in thread "modloading-worker-0"] at TRANSFORMER/healthindicators@21.11.1/neoforge.io.github.adytech99.healthindicators.neoforge.HealthIndicatorsNeoForge.(HealthIndicatorsNeoForge.java:32) at java.base/jdk.internal.misc.Unsafe.ensureClassInitialized0(Native Method) at java.base/jdk.internal.misc.Unsafe.ensureClassInitialized(Unsafe.java:1160) at java.base/jdk.internal.reflect.MethodHandleAccessorFactory.ensureClassInitialized(MethodHandleAccessorFactory.java:301) at java.base/jdk.internal.reflect.MethodHandleAccessorFactory.newConstructorAccessor(MethodHandleAccessorFactory.java:104) at java.base/jdk.internal.reflect.ReflectionFactory.newConstructorAccessor(ReflectionFactory.java:200) at java.base/java.lang.reflect.Constructor.acquireConstructorAccessor(Constructor.java:549) at java.base/java.lang.reflect.Constructor.newInstanceWithCaller(Constructor.java:499) at java.base/java.lang.reflect.Constructor.newInstance(Constructor.java:486) at net.neoforged.fml.javafmlmod.FMLModContainer.constructMod(FMLModContainer.java:118) ... 10 more [10:41:58] [modloading-worker-0/INFO] [YetAnotherConfigLib/]: Config file '/srv/pack/config/yacl.json5' does not exist. Creating it with default values. [10:41:58] [modloading-worker-0/INFO] [YetAnotherConfigLib/]: Serializing class dev.isxander.yacl3.platform.YACLConfig to '/srv/pack/config/yacl.json5' [10:41:58] [main/FATAL] [ne.ne.fm.ModLoader/LOADING]: Failed to wait for future Mod Construction, 1 errors found [10:41:58] [main/ERROR] [minecraft/CrashReport]: Negative index in crash report handler (0/11) [10:41:59] [main/FATAL] [ne.ne.ne.co.NeoForgeMod/]: Preparing crash report with UUID 3effdf43-d46a-4713-bdae-54927fc96528 [10:41:59] [main/FATAL] [ne.ne.ne.se.lo.ServerModLoader/]: Crash report saved to ./crash-reports/crash-2026-09-25_10.41.58-fml.txt [10:41:59] [main/FATAL] [ne.ne.ne.co.NeoForgeMod/]: Preparing crash report with UUID cb82e552-6498-4c84-81ce-f530691451cd ---- Minecraft Crash Report ---- // Don't do that. Time: 2026-09-25 10:41:59 Description: Mod loading failures have occurred; consult the issue messages for more details net.neoforged.neoforge.logging.CrashReportExtender$ModLoadingCrashException: Mod loading has failed A detailed walkthrough of the error, its code path and all known details is as follows: --------------------------------------------------------------------------------------- -- Head -- Thread: main Stacktrace: at java.base/java.net.URLClassLoader.findClass(URLClassLoader.java:445) ~[?:?] {} -- Mod loading issue for: healthindicators -- Details: Caused by 0: java.lang.NoClassDefFoundError: net/minecraft/client/Minecraft at TRANSFORMER/healthindicators@21.11.1/neoforge.io.github.adytech99.healthindicators.neoforge.HealthIndicatorsNeoForge.(HealthIndicatorsNeoForge.java:32) ~[?:?] {} at java.base/jdk.internal.misc.Unsafe.ensureClassInitialized0(Native Method) ~[?:?] {} at java.base/jdk.internal.misc.Unsafe.ensureClassInitialized(Unsafe.java:1160) ~[?:?] {} at java.base/jdk.internal.reflect.MethodHandleAccessorFactory.ensureClassInitialized(MethodHandleAccessorFactory.java:301) ~[?:?] {} at java.base/jdk.internal.reflect.MethodHandleAccessorFactory.newConstructorAccessor(MethodHandleAccessorFactory.java:104) ~[?:?] {} at java.base/jdk.internal.reflect.ReflectionFactory.newConstructorAccessor(ReflectionFactory.java:200) ~[?:?] {} at java.base/java.lang.reflect.Constructor.acquireConstructorAccessor(Constructor.java:549) ~[?:?] {} at java.base/java.lang.reflect.Constructor.newInstanceWithCaller(Constructor.java:499) ~[?:?] {} at java.base/java.lang.reflect.Constructor.newInstance(Constructor.java:486) ~[?:?] {} at net.neoforged.fml.javafmlmod.FMLModContainer.constructMod(FMLModContainer.java:118) ~[loader-10.0.36.jar:10.0] {} at net.neoforged.fml.ModLoader.lambda$constructMods$0(ModLoader.java:125) ~[loader-10.0.36.jar:10.0] {} at net.neoforged.fml.ModLoader.lambda$dispatchParallelTask$4(ModLoader.java:203) ~[loader-10.0.36.jar:10.0] {} at java.base/java.util.concurrent.CompletableFuture.uniHandle(CompletableFuture.java:934) ~[?:?] {} at java.base/java.util.concurrent.CompletableFuture$UniHandle.tryFire(CompletableFuture.java:911) ~[?:?] {} at java.base/java.util.concurrent.CompletableFuture$Completion.exec(CompletableFuture.java:483) ~[?:?] {} at java.base/java.util.concurrent.ForkJoinTask.doExec(ForkJoinTask.java:387) ~[?:?] {} at java.base/java.util.concurrent.ForkJoinPool$WorkQueue.topLevelExec(ForkJoinPool.java:1312) ~[?:?] {} at java.base/java.util.concurrent.ForkJoinPool.scan(ForkJoinPool.java:1843) ~[?:?] {} at java.base/java.util.concurrent.ForkJoinPool.runWorker(ForkJoinPool.java:1808) ~[?:?] {} at java.base/java.util.concurrent.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:188) ~[?:?] {} Mod file: /srv/pack/mods/HealthIndicators-21.11.1.jar Failure message: Health Indicators (healthindicators) has failed to load correctly java.lang.NoClassDefFoundError: net/minecraft/client/Minecraft Mod version: 21.11.1 Mod issues URL: Exception message: java.lang.ClassNotFoundException: net.minecraft.client.Minecraft Stacktrace: at java.base/java.net.URLClassLoader.findClass(URLClassLoader.java:445) ~[?:?] {} at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:593) ~[?:?] {} at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:526) ~[?:?] {} at net.neoforged.fml.classloading.ModuleClassLoader.loadClass(ModuleClassLoader.java:247) ~[loader-10.0.36.jar:10.0] {} at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:526) ~[?:?] {} at TRANSFORMER/healthindicators@21.11.1/neoforge.io.github.adytech99.healthindicators.neoforge.HealthIndicatorsNeoForge.(HealthIndicatorsNeoForge.java:32) ~[?:?] {} at java.base/jdk.internal.misc.Unsafe.ensureClassInitialized0(Native Method) ~[?:?] {} at java.base/jdk.internal.misc.Unsafe.ensureClassInitialized(Unsafe.java:1160) ~[?:?] {} at java.base/jdk.internal.reflect.MethodHandleAccessorFactory.ensureClassInitialized(MethodHandleAccessorFactory.java:301) ~[?:?] {} at java.base/jdk.internal.reflect.MethodHandleAccessorFactory.newConstructorAccessor(MethodHandleAccessorFactory.java:104) ~[?:?] {} at java.base/jdk.internal.reflect.ReflectionFactory.newConstructorAccessor(ReflectionFactory.java:200) ~[?:?] {} at java.base/java.lang.reflect.Constructor.acquireConstructorAccessor(Constructor.java:549) ~[?:?] {} at java.base/java.lang.reflect.Constructor.newInstanceWithCaller(Constructor.java:499) ~[?:?] {} at java.base/java.lang.reflect.Constructor.newInstance(Constructor.java:486) ~[?:?] {} at net.neoforged.fml.javafmlmod.FMLModContainer.constructMod(FMLModContainer.java:118) ~[loader-10.0.36.jar:10.0] {} at net.neoforged.fml.ModLoader.lambda$constructMods$0(ModLoader.java:125) ~[loader-10.0.36.jar:10.0] {} at net.neoforged.fml.ModLoader.lambda$dispatchParallelTask$4(ModLoader.java:203) ~[loader-10.0.36.jar:10.0] {} at java.base/java.util.concurrent.CompletableFuture.uniHandle(CompletableFuture.java:934) ~[?:?] {} at java.base/java.util.concurrent.CompletableFuture$UniHandle.tryFire(CompletableFuture.java:911) ~[?:?] {} at java.base/java.util.concurrent.CompletableFuture$Completion.exec(CompletableFuture.java:483) ~[?:?] {} at java.base/java.util.concurrent.ForkJoinTask.doExec(ForkJoinTask.java:387) ~[?:?] {} at java.base/java.util.concurrent.ForkJoinPool$WorkQueue.topLevelExec(ForkJoinPool.java:1312) ~[?:?] {} at java.base/java.util.concurrent.ForkJoinPool.scan(ForkJoinPool.java:1843) ~[?:?] {} at java.base/java.util.concurrent.ForkJoinPool.runWorker(ForkJoinPool.java:1808) ~[?:?] {} at java.base/java.util.concurrent.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:188) ~[?:?] {} -- System Details -- Details: Minecraft Version: 1.21.11 Minecraft Version ID: 1.21.11 Operating System: Linux (amd64) version 5.15.0-1114-realtime Java Version: 21.0.12.1, Eclipse Adoptium Java VM Version: OpenJDK 64-Bit Server VM (mixed mode, sharing), Eclipse Adoptium Memory: 85150272 bytes (81 MiB) / 227540992 bytes (217 MiB) up to 805306368 bytes (768 MiB) CPUs: 2 Processor Vendor: GenuineIntel Processor Name: Intel(R) Core(TM) i9-9900K CPU @ 3.60GHz Identifier: Intel64 Family 6 Model 158 Stepping 12 Microarchitecture: Coffee Lake Frequency (GHz): 3.60 Number of physical packages: 1 Number of physical CPUs: 8 Number of logical CPUs: 16 Graphics card #0 name: unknown Graphics card #0 vendor: unknown Graphics card #0 VRAM (MiB): 0.00 Graphics card #0 deviceId: unknown Graphics card #0 versionInfo: unknown Virtual memory max (MiB): 68454.64 Virtual memory used (MiB): 28622.39 Swap memory total (MiB): 4096.00 Swap memory used (MiB): 133.26 Space in storage for jna.tmpdir (MiB): Space in storage for org.lwjgl.system.SharedLibraryExtractPath (MiB): Space in storage for io.netty.native.workdir (MiB): Space in storage for java.io.tmpdir (MiB): available: 64358.52, total: 64358.65 Space in storage for workdir (MiB): available: 2543692.25, total: 7564391.00 JVM Flags: 0 total; Debug Flags: 0 total; Class Processors: 00.00%: neoforge:computing_frames (marker) 00.00%: neoforge:runtime_enum_extender 05.31%: neoforge:access_transformer 00.39%: neoforge:mixin 00.00%: neoforge:simple_processors_default (marker) 00.02%: neoforge.coremods:field_to_getter.net.minecraft.world.level.biome.biome 00.02%: neoforge.coremods:field_to_getter.net.minecraft.world.level.block.flowerpotblock 00.02%: neoforge.coremods:field_to_getter.net.minecraft.world.level.levelgen.structure.structure 00.41%: neoforge.coremods:method_redirector Mod List: architectury-19.0.1-neoforge.jar |Architectury |architectury |19.0.1 |Manifest: ce3e44b04edf63bde1d92b8b667eefb771c723bedcbf984426b3c3e1a68ae42d HealthIndicators-21.11.1.jar |Health Indicators |healthindicators |21.11.1 |Manifest: 6f79303ab9dbde23e84214956a23e233d4a537d897359191a2636bef1a41e0e6 minecraft-server-patched-21.11.45.jar |Minecraft |minecraft |1.21.11 |Manifest: 4b7c69bdb9408fdaf4f83130999daeedc19acf99ae158b318b9519ad9e04776e neoforge-21.11.45-universal.jar |NeoForge |neoforge |21.11.45 |Manifest: 0d9ab82c37319ed6514e8e28e5ab357ba5e9b8043ee4621333cf45b743039cba yet_another_config_lib_v3-3.8.2+1.21.11-neoforge.j|YetAnotherConfigLib |yet_another_config_lib_v3 |3.8.2+1.21.11-neofor|Manifest: 4a2c68111d22cfe9f1d29d3aa19ab4cf89ef19eaef29c97b6398a4bec745d113 Crash Report UUID: cb82e552-6498-4c84-81ce-f530691451cd FML: 10.0.36 NeoForge: 21.11.45 [10:41:59] [main/ERROR] [minecraft/Main]: Failed to start the minecraft server net.neoforged.fml.ModLoadingException: Loading errors encountered: - Health Indicators (healthindicators) has failed to load correctly java.lang.NoClassDefFoundError: net/minecraft/client/Minecraft at net.neoforged.fml.ModLoader.waitForFuture(ModLoader.java:253) ~[loader-10.0.36.jar:10.0] {} at net.neoforged.fml.ModLoader.dispatchParallelTask(ModLoader.java:216) ~[loader-10.0.36.jar:10.0] {} at net.neoforged.fml.ModLoader.constructMods(ModLoader.java:124) ~[loader-10.0.36.jar:10.0] {} at net.neoforged.fml.ModLoader.gatherAndInitializeMods(ModLoader.java:101) ~[loader-10.0.36.jar:10.0] {} at TRANSFORMER/neoforge@21.11.45/net.neoforged.neoforge.internal.CommonModLoader.begin(CommonModLoader.java:49) ~[neoforge-21.11.45-universal.jar:?] {} at TRANSFORMER/neoforge@21.11.45/net.neoforged.neoforge.server.loading.ServerModLoader.load(ServerModLoader.java:31) ~[neoforge-21.11.45-universal.jar:?] {} at TRANSFORMER/minecraft@1.21.11/net.minecraft.server.Main.main(Main.java:116) [minecraft-server-patched-21.11.45.jar:?] {} at net.neoforged.fml.startup.Server.main(Server.java:19) [loader-10.0.36.jar:10.0] {} at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] {} at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] {} at net.neoforged.serverstarterjar.Main.mainLaunch(Main.java:306) [server.jar:0.1.35] {} at net.neoforged.serverstarterjar.Main.main(Main.java:76) [server.jar:0.1.35] {} at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] {} at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] {} at net.neoforged.serverstarterjar.Main8.main(Main8.java:19) [server.jar:0.1.35] {} [10:41:59] [main/INFO] [ne.ne.fm.lo.FMLLoader/]: Closing FML Loader 6eb06d55 [10:41:59] [main/INFO] [ne.ne.fm.ModLoader/]: Clearing ModLoader net.neoforged.fml.startup.FatalStartupException: Couldn't find Minecraft server thread. Startup likely failed. at net.neoforged.fml.startup.Server.main(Server.java:23) at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) at java.base/java.lang.reflect.Method.invoke(Method.java:580) at net.neoforged.serverstarterjar.Main.mainLaunch(Main.java:306) at net.neoforged.serverstarterjar.Main.main(Main.java:76) at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) at java.base/java.lang.reflect.Method.invoke(Method.java:580) at net.neoforged.serverstarterjar.Main8.main(Main8.java:19) Exiting...