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 1.21.3 - 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: 1.21.3 Modloader: NeoForge Modloader version: 21.3.97 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 21.3.97 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) [18:59:13.592] [main/INFO] [Launcher/MODLAUNCHER]: ModLauncher running: args [--launchTarget, forgeserver, --fml.neoForgeVersion, 21.3.97, --fml.fmlVersion, 5.0.8, --fml.mcVersion, 1.21.3, --fml.neoFormVersion, 20241023.131943, nogui] [18:59:13.595] [main/INFO] [Launcher/MODLAUNCHER]: JVM identified as Eclipse Adoptium OpenJDK 64-Bit Server VM 21.0.12.1+1-LTS [18:59:13.596] [main/INFO] [Launcher/MODLAUNCHER]: ModLauncher 11.0.4+main.d2e20e43 starting: java version 21.0.12.1 by Eclipse Adoptium; OS Linux arch amd64 version 5.15.0-1114-realtime [18:59:13.750] [main/INFO] [loading.ImmediateWindowHandler/]: ImmediateWindowProvider not loading because launch target is forgeserver [18:59:13.813] [main/INFO] [mixin/]: SpongePowered MIXIN Subsystem Version=0.8.7 Source=union:/srv/pack/libraries/net/fabricmc/sponge-mixin/0.15.2+mixin.0.8.7/sponge-mixin-0.15.2+mixin.0.8.7.jar%2385!/ Service=ModLauncher Env=SERVER [18:59:14.350] [main/INFO] [loading.moddiscovery.ModDiscoverer/SCAN]: Found mod file "server-1.21.3-20241023.131943-srg.jar" [locator: production server provider +net.neoforged:neoforge:21.3.97:server] [18:59:14.386] [main/INFO] [loading.moddiscovery.ModDiscoverer/SCAN]: Found mod file "neoforge-21.3.97-universal.jar" [locator: PathBasedLocator[name=neoforge, paths=[libraries/net/neoforged/neoforge/21.3.97/neoforge-21.3.97-universal.jar]], reader: mod manifest] [18:59:14.394] [main/INFO] [loading.moddiscovery.ModDiscoverer/SCAN]: Found mod file "sdmshop-1.1.jar" [locator: {mods folder locator at /srv/pack/mods}, reader: mod manifest] [18:59:14.555] [main/INFO] [loading.moddiscovery.locators.JarInJarDependencyLocator/]: Found 2 dependencies adding them to mods collection [18:59:14.557] [main/INFO] [loading.moddiscovery.ModDiscoverer/SCAN]: Found gamelibrary file "mixinextras-neoforge-0.5.3.jar" [parent: neoforge-21.3.97-universal.jar, locator: jarinjar, reader: mod manifest] [18:59:14.559] [main/INFO] [loading.moddiscovery.ModDiscoverer/SCAN]: Found library file "net.neoforged.neoforge-coremods-21.3.97.jar" [parent: neoforge-21.3.97-universal.jar, locator: jarinjar, reader: mod manifest] [18:59:14.563] [main/INFO] [loading.moddiscovery.ModDiscoverer/]: Mod List: Name Version (Mod Id) Minecraft 1.21.3 (minecraft) NeoForge 21.3.97 (neoforge) SDMShop 1.1 (sdmshop) [18:59:15.213] [main/INFO] [LaunchServiceHandler/MODLAUNCHER]: Launching target 'forgeserver' with arguments [nogui] [18:59:15.294] [main/WARN] [mixin/]: Reference map 'SDMShop.refmap.json' for sdmshop.mixins.json could not be read. If this is a development environment you can ignore this message [18:59:15.524] [main/WARN] [mixin/]: Error loading class: dev/ftb/mods/ftblibrary/ui/TextField (java.lang.ClassNotFoundException: dev.ftb.mods.ftblibrary.ui.TextField) [18:59:15.532] [main/WARN] [mixin/]: @Mixin target dev.ftb.mods.ftblibrary.ui.TextField was not found sdmshop.mixins.json:TextFieldMixin from mod sdmshop WARN StatusConsoleListener Advanced terminal features are not available in this environment [18:59:17] [main/INFO] [MixinExtras|Service/]: Initializing MixinExtras via com.llamalad7.mixinextras.service.MixinExtrasServiceImpl(version=0.5.3). [18:59:26] [modloading-worker-0/ERROR] [ne.ne.fm.ja.FMLModContainer/LOADING]: Failed to create mod instance. ModID: sdmshop, class net.sixk.sdmshop.SDMShop java.lang.NoClassDefFoundError: net/sixik/sdmcore/impl/utils/serializer/data/IData at java.base/java.lang.Class.getDeclaredConstructors0(Native Method) ~[?:?] {} at java.base/java.lang.Class.privateGetDeclaredConstructors(Class.java:3551) ~[?:?] {} at java.base/java.lang.Class.getConstructors(Class.java:2229) ~[?:?] {} at MC-BOOTSTRAP/fml_loader@5.0.8/net.neoforged.fml.javafmlmod.FMLModContainer.constructMod(FMLModContainer.java:82) ~[loader-5.0.8.jar%2371!/:5.0] {} at MC-BOOTSTRAP/fml_loader@5.0.8/net.neoforged.fml.ModLoader.lambda$constructMods$3(ModLoader.java:153) ~[loader-5.0.8.jar%2371!/:5.0] {} at MC-BOOTSTRAP/fml_loader@5.0.8/net.neoforged.fml.ModLoader.lambda$dispatchParallelTask$7(ModLoader.java:231) ~[loader-5.0.8.jar%2371!/:5.0] {} at java.base/java.util.concurrent.CompletableFuture.uniHandle(CompletableFuture.java:934) [?:?] {} at java.base/java.util.concurrent.CompletableFuture$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.sixik.sdmcore.impl.utils.serializer.data.IData at java.base/jdk.internal.loader.BuiltinClassLoader.loadClass(BuiltinClassLoader.java:641) ~[?:?] {} at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:526) ~[?:?] {} at cpw.mods.securejarhandler/cpw.mods.cl.ModuleClassLoader.loadClass(ModuleClassLoader.java:216) ~[securejarhandler-3.0.8.jar:?] {} at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:526) ~[?:?] {} at cpw.mods.securejarhandler/cpw.mods.cl.ModuleClassLoader.loadClass(ModuleClassLoader.java:216) ~[securejarhandler-3.0.8.jar:?] {} at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:526) ~[?:?] {} ... 14 more [18:59:26] [modloading-worker-0/INFO] [ne.ne.ne.co.NeoForgeMod/NEOFORGE-MOD]: NeoForge mod loading, version 21.3.97, for MC 1.21.3 [18:59:26] [main/FATAL] [ne.ne.fm.ModLoader/LOADING]: Failed to wait for future Mod Construction, 1 errors found [18:59:26] [main/ERROR] [minecraft/CrashReport]: Negative index in crash report handler (0/25) [18:59:26] [main/FATAL] [ne.ne.ne.co.NeoForgeMod/]: Preparing crash report with UUID 0d43a2ea-29ce-40b5-ab94-711c6bb413dd [18:59:26] [main/FATAL] [ne.ne.ne.se.lo.ServerModLoader/]: Crash report saved to ./crash-reports/crash-2026-09-25_18.59.26-fml.txt [18:59:26] [main/FATAL] [ne.ne.ne.co.NeoForgeMod/]: Preparing crash report with UUID 1168152a-dfc0-4ad0-9a82-8f6a03f3a04d ---- Minecraft Crash Report ---- // Shall we play a game? Time: 2026-09-25 18:59:26 Description: Mod loading failures have occurred; consult the issue messages for more details net.neoforged.neoforge.logging.CrashReportExtender$ModLoadingCrashException: Mod loading has failed A detailed walkthrough of the error, its code path and all known details is as follows: --------------------------------------------------------------------------------------- -- Head -- Thread: main Stacktrace: at java.base/jdk.internal.loader.BuiltinClassLoader.loadClass(BuiltinClassLoader.java:641) ~[?:?] {} -- Mod loading issue for: sdmshop -- Details: Caused by 0: java.lang.NoClassDefFoundError: net/sixik/sdmcore/impl/utils/serializer/data/IData at java.base/java.lang.Class.getDeclaredConstructors0(Native Method) ~[?:?] {} at java.base/java.lang.Class.privateGetDeclaredConstructors(Class.java:3551) ~[?:?] {} at java.base/java.lang.Class.getConstructors(Class.java:2229) ~[?:?] {} at MC-BOOTSTRAP/fml_loader@5.0.8/net.neoforged.fml.javafmlmod.FMLModContainer.constructMod(FMLModContainer.java:82) ~[loader-5.0.8.jar%2371!/:5.0] {} at MC-BOOTSTRAP/fml_loader@5.0.8/net.neoforged.fml.ModLoader.lambda$constructMods$3(ModLoader.java:153) ~[loader-5.0.8.jar%2371!/:5.0] {} at MC-BOOTSTRAP/fml_loader@5.0.8/net.neoforged.fml.ModLoader.lambda$dispatchParallelTask$7(ModLoader.java:231) ~[loader-5.0.8.jar%2371!/:5.0] {} at java.base/java.util.concurrent.CompletableFuture.uniHandle(CompletableFuture.java:934) ~[?:?] {} at java.base/java.util.concurrent.CompletableFuture$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/sdmshop-1.1.jar Failure message: SDMShop (sdmshop) has failed to load correctly java.lang.NoClassDefFoundError: net/sixik/sdmcore/impl/utils/serializer/data/IData Mod version: 1.1 Mod issues URL: Exception message: java.lang.ClassNotFoundException: net.sixik.sdmcore.impl.utils.serializer.data.IData Stacktrace: at java.base/jdk.internal.loader.BuiltinClassLoader.loadClass(BuiltinClassLoader.java:641) ~[?:?] {} at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:526) ~[?:?] {} at cpw.mods.securejarhandler/cpw.mods.cl.ModuleClassLoader.loadClass(ModuleClassLoader.java:216) ~[securejarhandler-3.0.8.jar:?] {} at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:526) ~[?:?] {} at cpw.mods.securejarhandler/cpw.mods.cl.ModuleClassLoader.loadClass(ModuleClassLoader.java:216) ~[securejarhandler-3.0.8.jar:?] {} at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:526) ~[?:?] {} at java.base/java.lang.Class.getDeclaredConstructors0(Native Method) ~[?:?] {} at java.base/java.lang.Class.privateGetDeclaredConstructors(Class.java:3551) ~[?:?] {} at java.base/java.lang.Class.getConstructors(Class.java:2229) ~[?:?] {} at MC-BOOTSTRAP/fml_loader@5.0.8/net.neoforged.fml.javafmlmod.FMLModContainer.constructMod(FMLModContainer.java:82) ~[loader-5.0.8.jar%2371!/:5.0] {} at MC-BOOTSTRAP/fml_loader@5.0.8/net.neoforged.fml.ModLoader.lambda$constructMods$3(ModLoader.java:153) ~[loader-5.0.8.jar%2371!/:5.0] {} at MC-BOOTSTRAP/fml_loader@5.0.8/net.neoforged.fml.ModLoader.lambda$dispatchParallelTask$7(ModLoader.java:231) ~[loader-5.0.8.jar%2371!/:5.0] {} at java.base/java.util.concurrent.CompletableFuture.uniHandle(CompletableFuture.java:934) ~[?:?] {} at java.base/java.util.concurrent.CompletableFuture$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: 1.21.3 Minecraft Version ID: 1.21.3 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: 107735648 bytes (102 MiB) / 228589568 bytes (218 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): 43296.44 Swap memory total (MiB): 4096.00 Swap memory used (MiB): 155.56 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: 2535469.50, total: 7564391.00 JVM Flags: 0 total; ModLauncher: 11.0.4+main.d2e20e43 ModLauncher launch target: forgeserver ModLauncher services: sponge-mixin-0.15.2+mixin.0.8.7.jar mixin PLUGINSERVICE loader-5.0.8.jar slf4jfixer PLUGINSERVICE loader-5.0.8.jar runtime_enum_extender PLUGINSERVICE at-modlauncher-11.0.1.jar accesstransformer PLUGINSERVICE loader-5.0.8.jar runtimedistcleaner PLUGINSERVICE modlauncher-11.0.4.jar mixin TRANSFORMATIONSERVICE modlauncher-11.0.4.jar fml TRANSFORMATIONSERVICE FML Language Providers: javafml@5.0 lowcodefml@5.0 minecraft@5.0 Mod List: server-1.21.3-20241023.131943-srg.jar |Minecraft |minecraft |1.21.3 |Manifest: NOSIGNATURE neoforge-21.3.97-universal.jar |NeoForge |neoforge |21.3.97 |Manifest: NOSIGNATURE sdmshop-1.1.jar |SDMShop |sdmshop |1.1 |Manifest: NOSIGNATURE Crash Report UUID: 1168152a-dfc0-4ad0-9a82-8f6a03f3a04d FML: 5.0.8 NeoForge: 21.3.97 [18:59:26] [main/ERROR] [minecraft/Main]: Failed to start the minecraft server net.neoforged.fml.ModLoadingException: Loading errors encountered: - SDMShop (sdmshop) has failed to load correctly java.lang.NoClassDefFoundError: net/sixik/sdmcore/impl/utils/serializer/data/IData at MC-BOOTSTRAP/fml_loader@5.0.8/net.neoforged.fml.ModLoader.waitForFuture(ModLoader.java:281) ~[loader-5.0.8.jar%2371!/:5.0] {} at MC-BOOTSTRAP/fml_loader@5.0.8/net.neoforged.fml.ModLoader.dispatchParallelTask(ModLoader.java:244) ~[loader-5.0.8.jar%2371!/:5.0] {} at MC-BOOTSTRAP/fml_loader@5.0.8/net.neoforged.fml.ModLoader.constructMods(ModLoader.java:152) ~[loader-5.0.8.jar%2371!/:5.0] {} at MC-BOOTSTRAP/fml_loader@5.0.8/net.neoforged.fml.ModLoader.gatherAndInitializeMods(ModLoader.java:142) ~[loader-5.0.8.jar%2371!/:5.0] {} at TRANSFORMER/neoforge@21.3.97/net.neoforged.neoforge.internal.CommonModLoader.begin(CommonModLoader.java:49) ~[neoforge-21.3.97-universal.jar%23143!/:?] {re:classloading} at TRANSFORMER/neoforge@21.3.97/net.neoforged.neoforge.server.loading.ServerModLoader.load(ServerModLoader.java:34) ~[neoforge-21.3.97-universal.jar%23143!/:?] {re:classloading} at TRANSFORMER/minecraft@1.21.3/net.minecraft.server.Main.main(Main.java:124) ~[server-1.21.3-20241023.131943-srg.jar%23142!/:?] {re:classloading} at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?] {} at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?] {} at MC-BOOTSTRAP/fml_loader@5.0.8/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-5.0.8.jar%2371!/:5.0] {} at MC-BOOTSTRAP/fml_loader@5.0.8/net.neoforged.fml.loading.targets.CommonLaunchHandler.serverService(CommonLaunchHandler.java:128) ~[loader-5.0.8.jar%2371!/:5.0] {} at MC-BOOTSTRAP/fml_loader@5.0.8/net.neoforged.fml.loading.targets.CommonServerLaunchHandler.runService(CommonServerLaunchHandler.java:32) ~[loader-5.0.8.jar%2371!/:5.0] {} at MC-BOOTSTRAP/fml_loader@5.0.8/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-5.0.8.jar%2371!/:5.0] {} at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.4/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.4.jar%2376!/:?] {} at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.4/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.4.jar%2376!/:?] {} at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.4/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.4.jar%2376!/:?] {} at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.4/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.4.jar%2376!/:?] {} at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.4/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.4.jar%2376!/:?] {} at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.4/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.4.jar%2376!/:?] {} at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.4/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.4.jar%2376!/:?] {} at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?] {} at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?] {} 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] {} Exiting...