[24Sep2026 13:46:49.302] [main/INFO] [cpw.mods.modlauncher.Launcher/MODLAUNCHER]: ModLauncher running: args [--launchTarget, forgeserver, --fml.neoForgeVersion, 21.1.251, --fml.fmlVersion, 4.0.44, --fml.mcVersion, 1.21.1, --fml.neoFormVersion, 20240808.144430, nogui] [24Sep2026 13:46:49.315] [main/INFO] [cpw.mods.modlauncher.Launcher/MODLAUNCHER]: JVM identified as Eclipse Adoptium OpenJDK 64-Bit Server VM 21.0.12.1+1-LTS [24Sep2026 13:46:49.316] [main/INFO] [cpw.mods.modlauncher.Launcher/MODLAUNCHER]: ModLauncher 11.0.5+main.901c6ea8 starting: java version 21.0.12.1 by Eclipse Adoptium; OS Linux arch amd64 version 5.15.0-1114-realtime [24Sep2026 13:46:49.536] [main/INFO] [net.neoforged.fml.loading.ImmediateWindowHandler/]: ImmediateWindowProvider not loading because launch target is forgeserver [24Sep2026 13:46:49.582] [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%2373!/ Service=ModLauncher Env=SERVER [24Sep2026 13:46:50.010] [main/INFO] [net.neoforged.fml.loading.moddiscovery.ModDiscoverer/SCAN]: Found mod file "server-1.21.1-20240808.144430-srg.jar" [locator: production server provider +net.neoforged:neoforge:21.1.251:server] [24Sep2026 13:46:50.028] [main/INFO] [net.neoforged.fml.loading.moddiscovery.ModDiscoverer/SCAN]: Found mod file "neoforge-21.1.251-universal.jar" [locator: PathBasedLocator[name=neoforge, paths=[libraries/net/neoforged/neoforge/21.1.251/neoforge-21.1.251-universal.jar]], reader: mod manifest] [24Sep2026 13:46:50.037] [main/INFO] [net.neoforged.fml.loading.moddiscovery.ModDiscoverer/SCAN]: Found mod file "curios-neoforge-9.5.1+1.21.1.jar" [locator: {mods folder locator at /srv/pack/mods}, reader: mod manifest] [24Sep2026 13:46:50.046] [main/INFO] [net.neoforged.fml.loading.moddiscovery.ModDiscoverer/SCAN]: Found mod file "L_Ender's Cataclysm 1.21.1-3.23.jar" [locator: {mods folder locator at /srv/pack/mods}, reader: mod manifest] [24Sep2026 13:46:50.150] [main/INFO] [net.neoforged.fml.loading.moddiscovery.locators.JarInJarDependencyLocator/]: Found 2 dependencies adding them to mods collection [24Sep2026 13:46:50.151] [main/INFO] [net.neoforged.fml.loading.moddiscovery.ModDiscoverer/SCAN]: Found gamelibrary file "mixinextras-neoforge-0.5.3.jar" [parent: neoforge-21.1.251-universal.jar, locator: jarinjar, reader: mod manifest] [24Sep2026 13:46:50.151] [main/INFO] [net.neoforged.fml.loading.moddiscovery.ModDiscoverer/SCAN]: Found library file "net.neoforged.neoforge-coremods-21.1.251.jar" [parent: neoforge-21.1.251-universal.jar, locator: jarinjar, reader: mod manifest] [24Sep2026 13:46:50.152] [main/INFO] [net.neoforged.fml.loading.moddiscovery.ModDiscoverer/]: Mod List: Name Version (Mod Id) Curios API 9.5.1+1.21.1 (curios) L_Ender's Cataclysm 1.21.1 3.23 (cataclysm) Minecraft 1.21.1 (minecraft) NeoForge 21.1.251 (neoforge) [24Sep2026 13:46:50.794] [main/INFO] [mixin/]: Compatibility level set to JAVA_17 [24Sep2026 13:46:50.796] [main/INFO] [mixin/]: Compatibility level set to JAVA_21 [24Sep2026 13:46:50.807] [main/INFO] [cpw.mods.modlauncher.LaunchServiceHandler/MODLAUNCHER]: Launching target 'forgeserver' with arguments [nogui] [24Sep2026 13:46:50.888] [main/WARN] [mixin/]: Reference map 'cataclysm.refmap.json' for cataclysm.mixins.json could not be read. If this is a development environment you can ignore this message [24Sep2026 13:46:50.889] [main/WARN] [mixin/]: Reference map 'curios.refmap.json' for curios.neoforge.mixins.json could not be read. If this is a development environment you can ignore this message [24Sep2026 13:46:50.889] [main/WARN] [mixin/]: Reference map 'curios.refmap.json' for curios.mixins.json could not be read. If this is a development environment you can ignore this message [24Sep2026 13:46:52.289] [main/INFO] [MixinExtras|Service/]: Initializing MixinExtras via com.llamalad7.mixinextras.service.MixinExtrasServiceImpl(version=0.5.3). [24Sep2026 13:47:01.033] [modloading-worker-0/INFO] [net.neoforged.neoforge.common.NeoForgeMod/NEOFORGE-MOD]: NeoForge mod loading, version 21.1.251, for MC 1.21.1 [24Sep2026 13:47:01.209] [modloading-worker-0/ERROR] [net.neoforged.fml.javafmlmod.FMLModContainer/LOADING]: Failed to create mod instance. ModID: cataclysm, class com.github.L_Ender.cataclysm.Cataclysm java.lang.NoClassDefFoundError: com/github/L_Ender/lionfishapi/server/animation/IAnimatedEntity at java.base/java.lang.ClassLoader.defineClass1(Native Method) ~[?:?] at java.base/java.lang.ClassLoader.defineClass(ClassLoader.java:1027) ~[?:?] at cpw.mods.securejarhandler/cpw.mods.cl.ModuleClassLoader.readerToClass(ModuleClassLoader.java:196) ~[securejarhandler-3.0.8.jar:?] at cpw.mods.securejarhandler/cpw.mods.cl.ModuleClassLoader.lambda$findClass$20(ModuleClassLoader.java:298) ~[securejarhandler-3.0.8.jar:?] at cpw.mods.securejarhandler/cpw.mods.cl.ModuleClassLoader.loadFromModule(ModuleClassLoader.java:311) ~[securejarhandler-3.0.8.jar:?] at cpw.mods.securejarhandler/cpw.mods.cl.ModuleClassLoader.findClass(ModuleClassLoader.java:298) ~[securejarhandler-3.0.8.jar:?] at cpw.mods.securejarhandler/cpw.mods.cl.ModuleClassLoader.loadClass(ModuleClassLoader.java:214) ~[securejarhandler-3.0.8.jar:?] at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:526) ~[?:?] at java.base/java.lang.ClassLoader.defineClass1(Native Method) ~[?:?] at java.base/java.lang.ClassLoader.defineClass(ClassLoader.java:1027) ~[?:?] at cpw.mods.securejarhandler/cpw.mods.cl.ModuleClassLoader.readerToClass(ModuleClassLoader.java:196) ~[securejarhandler-3.0.8.jar:?] at cpw.mods.securejarhandler/cpw.mods.cl.ModuleClassLoader.lambda$findClass$20(ModuleClassLoader.java:298) ~[securejarhandler-3.0.8.jar:?] at cpw.mods.securejarhandler/cpw.mods.cl.ModuleClassLoader.loadFromModule(ModuleClassLoader.java:311) ~[securejarhandler-3.0.8.jar:?] at cpw.mods.securejarhandler/cpw.mods.cl.ModuleClassLoader.findClass(ModuleClassLoader.java:298) ~[securejarhandler-3.0.8.jar:?] at cpw.mods.securejarhandler/cpw.mods.cl.ModuleClassLoader.loadClass(ModuleClassLoader.java:214) ~[securejarhandler-3.0.8.jar:?] at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:526) ~[?:?] at TRANSFORMER/cataclysm@3.23/com.github.L_Ender.cataclysm.init.ModStructures.(ModStructures.java:45) ~[L_Ender's%20Cataclysm%201.21.1-3.23.jar%23122!/:?] at TRANSFORMER/cataclysm@3.23/com.github.L_Ender.cataclysm.Cataclysm.(Cataclysm.java:64) ~[L_Ender's%20Cataclysm%201.21.1-3.23.jar%23122!/:?] at java.base/jdk.internal.reflect.DirectConstructorHandleAccessor.newInstance(DirectConstructorHandleAccessor.java:62) ~[?:?] at java.base/java.lang.reflect.Constructor.newInstanceWithCaller(Constructor.java:502) ~[?:?] at java.base/java.lang.reflect.Constructor.newInstance(Constructor.java:486) ~[?:?] at MC-BOOTSTRAP/fml_loader@4.0.44/net.neoforged.fml.javafmlmod.FMLModContainer.constructMod(FMLModContainer.java:122) ~[loader-4.0.44.jar%2359!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.44/net.neoforged.fml.ModLoader.lambda$constructMods$3(ModLoader.java:153) ~[loader-4.0.44.jar%2359!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.44/net.neoforged.fml.ModLoader.lambda$dispatchParallelTask$7(ModLoader.java:231) ~[loader-4.0.44.jar%2359!/:4.0] at java.base/java.util.concurrent.CompletableFuture.uniHandle(CompletableFuture.java:934) [?:?] at java.base/java.util.concurrent.CompletableFuture$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: com.github.L_Ender.lionfishapi.server.animation.IAnimatedEntity 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) ~[?:?] ... 32 more [24Sep2026 13:47:01.246] [main/FATAL] [net.neoforged.fml.ModLoader/LOADING]: Failed to wait for future Mod Construction, 1 errors found [24Sep2026 13:47:01.390] [main/ERROR] [net.minecraft.CrashReport/]: Negative index in crash report handler (0/25) [24Sep2026 13:47:01.404] [main/FATAL] [net.neoforged.neoforge.common.NeoForgeMod/]: Preparing crash report with UUID 18ceec4d-d10b-4fc0-ba89-9530ada4233b [24Sep2026 13:47:01.404] [main/FATAL] [net.neoforged.neoforge.server.loading.ServerModLoader/]: Crash report saved to ./crash-reports/crash-2026-09-24_13.47.01-fml.txt [24Sep2026 13:47:01.406] [main/FATAL] [net.neoforged.neoforge.common.NeoForgeMod/]: Preparing crash report with UUID d82dda0f-958d-4002-83d0-b1d665e09003 [24Sep2026 13:47:01.406] [main/ERROR] [net.minecraft.server.Main/FATAL]: Failed to start the minecraft server net.neoforged.fml.ModLoadingException: Loading errors encountered: - L_Ender's Cataclysm 1.21.1 (cataclysm) has failed to load correctly java.lang.NoClassDefFoundError: com/github/L_Ender/lionfishapi/server/animation/IAnimatedEntity at MC-BOOTSTRAP/fml_loader@4.0.44/net.neoforged.fml.ModLoader.waitForFuture(ModLoader.java:281) ~[loader-4.0.44.jar%2359!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.44/net.neoforged.fml.ModLoader.dispatchParallelTask(ModLoader.java:244) ~[loader-4.0.44.jar%2359!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.44/net.neoforged.fml.ModLoader.constructMods(ModLoader.java:152) ~[loader-4.0.44.jar%2359!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.44/net.neoforged.fml.ModLoader.gatherAndInitializeMods(ModLoader.java:142) ~[loader-4.0.44.jar%2359!/:4.0] at TRANSFORMER/neoforge@21.1.251/net.neoforged.neoforge.internal.CommonModLoader.begin(CommonModLoader.java:49) ~[neoforge-21.1.251-universal.jar%23120!/:?] at TRANSFORMER/neoforge@21.1.251/net.neoforged.neoforge.server.loading.ServerModLoader.load(ServerModLoader.java:34) ~[neoforge-21.1.251-universal.jar%23120!/:?] at TRANSFORMER/minecraft@1.21.1/net.minecraft.server.Main.main(Main.java:124) ~[server-1.21.1-20240808.144430-srg.jar%23119!/:?] 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@4.0.44/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.44.jar%2359!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.44/net.neoforged.fml.loading.targets.CommonLaunchHandler.serverService(CommonLaunchHandler.java:128) ~[loader-4.0.44.jar%2359!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.44/net.neoforged.fml.loading.targets.CommonServerLaunchHandler.runService(CommonServerLaunchHandler.java:32) ~[loader-4.0.44.jar%2359!/:4.0] at MC-BOOTSTRAP/fml_loader@4.0.44/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.44.jar%2359!/:4.0] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%2364!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%2364!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%2364!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%2364!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%2364!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%2364!/:?] at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%2364!/:?] 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]