[25Sep2026 18:05:06.356] [main/INFO] [cpw.mods.modlauncher.Launcher/MODLAUNCHER]: ModLauncher running: args [--launchTarget, forgeserver, --fml.neoForgeVersion, 20.4.251, --fml.fmlVersion, 2.0.17, --fml.mcVersion, 1.20.4, --fml.neoFormVersion, 20240627.114801, nogui] [25Sep2026 18:05:06.359] [main/INFO] [cpw.mods.modlauncher.Launcher/MODLAUNCHER]: ModLauncher 10.0.9+10.0.9+main.dcd20f30 starting: java version 17.0.20.1 by Eclipse Adoptium; OS Linux arch amd64 version 5.15.0-1114-realtime [25Sep2026 18:05:06.529] [main/INFO] [net.neoforged.fml.loading.ImmediateWindowHandler/]: ImmediateWindowProvider not loading because launch target is forgeserver [25Sep2026 18:05:06.589] [main/INFO] [mixin/]: SpongePowered MIXIN Subsystem Version=0.8.5 Source=union:/srv/pack/libraries/net/fabricmc/sponge-mixin/0.13.4+mixin.0.8.5/sponge-mixin-0.13.4+mixin.0.8.5.jar%2379!/ Service=ModLauncher Env=SERVER [25Sep2026 18:05:06.697] [main/INFO] [net.neoforged.fml.loading.moddiscovery.ModDiscoverer/SCAN]: Found mod file "framework-neoforge-1.20.4-0.7.15.jar" of type MOD with provider {mods folder locator at /srv/pack/mods} [25Sep2026 18:05:06.842] [main/INFO] [net.neoforged.fml.loading.moddiscovery.ModDiscoverer/SCAN]: Found mod file "server-1.20.4-20240627.114801-srg.jar" of type MOD with provider net.neoforged.fml.loading.moddiscovery.MinecraftLocator@33617539 [25Sep2026 18:05:06.842] [main/INFO] [net.neoforged.fml.loading.moddiscovery.ModDiscoverer/SCAN]: Found mod file "neoforge-20.4.251-universal.jar" of type MOD with provider net.neoforged.fml.loading.moddiscovery.MinecraftLocator@33617539 [25Sep2026 18:05:06.974] [main/INFO] [net.neoforged.fml.loading.moddiscovery.JarInJarDependencyLocator/]: Found 1 dependencies adding them to mods collection [25Sep2026 18:05:06.975] [main/INFO] [net.neoforged.fml.loading.moddiscovery.ModDiscoverer/SCAN]: Found mod file "mixinextras-neoforge-0.4.1.jar" of type GAMELIBRARY with provider net.neoforged.fml.loading.moddiscovery.JarInJarDependencyLocator@3b9d6699 [25Sep2026 18:05:08.489] [main/INFO] [cpw.mods.modlauncher.LaunchServiceHandler/MODLAUNCHER]: Launching target 'forgeserver' with arguments [nogui] [25Sep2026 18:05:18.770] [main/ERROR] [net.neoforged.fml.javafmlmod.FMLModContainer/LOADING]: Failed to load class com.mrcrayfish.framework.FrameworkNeoForge java.lang.UnsupportedClassVersionError: com/mrcrayfish/framework/FrameworkNeoForge has been compiled by a more recent version of the Java Runtime (class file version 65.0), this version of the Java Runtime only recognizes class file versions up to 61.0 at java.lang.ClassLoader.defineClass1(Native Method) ~[?:?] at java.lang.ClassLoader.defineClass(ClassLoader.java:1017) ~[?:?] at cpw.mods.cl.ModuleClassLoader.readerToClass(ModuleClassLoader.java:175) ~[securejarhandler-2.1.24.jar:?] at cpw.mods.cl.ModuleClassLoader.lambda$findClass$20(ModuleClassLoader.java:275) ~[securejarhandler-2.1.24.jar:?] at cpw.mods.cl.ModuleClassLoader.loadFromModule(ModuleClassLoader.java:288) ~[securejarhandler-2.1.24.jar:?] at cpw.mods.cl.ModuleClassLoader.findClass(ModuleClassLoader.java:275) ~[securejarhandler-2.1.24.jar:?] at java.lang.ClassLoader.loadClass(ClassLoader.java:637) ~[?:?] at java.lang.Class.forName(Class.java:547) ~[?:?] at net.neoforged.fml.javafmlmod.FMLModContainer.(FMLModContainer.java:57) ~[loader-2.0.17.jar%2362!/:2.0] at net.neoforged.fml.javafmlmod.FMLJavaModLanguageProvider$FMLModTarget.loadMod(FMLJavaModLanguageProvider.java:46) ~[loader-2.0.17.jar%2362!/:2.0] at net.neoforged.fml.ModLoader.buildModContainerFromTOML(ModLoader.java:299) ~[loader-2.0.17.jar%2362!/:2.0] at net.neoforged.fml.ModLoader.lambda$buildMods$24(ModLoader.java:266) ~[loader-2.0.17.jar%2362!/:2.0] at java.util.stream.ReferencePipeline$3$1.accept(ReferencePipeline.java:197) ~[?:?] at java.util.HashMap$EntrySpliterator.forEachRemaining(HashMap.java:1850) ~[?:?] at java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:509) ~[?:?] at java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:499) ~[?:?] at java.util.stream.ReduceOps$ReduceOp.evaluateSequential(ReduceOps.java:921) ~[?:?] at java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) ~[?:?] at java.util.stream.ReferencePipeline.collect(ReferencePipeline.java:682) ~[?:?] at net.neoforged.fml.ModLoader.buildMods(ModLoader.java:268) ~[loader-2.0.17.jar%2362!/:2.0] at java.util.stream.ReferencePipeline$3$1.accept(ReferencePipeline.java:197) ~[?:?] at java.util.stream.ReferencePipeline$3$1.accept(ReferencePipeline.java:197) ~[?:?] at java.util.ArrayList$ArrayListSpliterator.forEachRemaining(ArrayList.java:1625) ~[?:?] at java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:509) ~[?:?] at java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:499) ~[?:?] at java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:575) ~[?:?] at java.util.stream.AbstractPipeline.evaluateToArrayNode(AbstractPipeline.java:260) ~[?:?] at java.util.stream.ReferencePipeline.toArray(ReferencePipeline.java:616) ~[?:?] at java.util.stream.ReferencePipeline.toArray(ReferencePipeline.java:622) ~[?:?] at java.util.stream.ReferencePipeline.toList(ReferencePipeline.java:627) ~[?:?] at net.neoforged.fml.ModLoader.gatherAndInitializeMods(ModLoader.java:179) ~[loader-2.0.17.jar%2362!/:2.0] at net.neoforged.neoforge.server.loading.ServerModLoader.load(ServerModLoader.java:32) ~[neoforge-20.4.251-universal.jar%23127!/:?] at net.minecraft.server.Main.main(Main.java:122) ~[server-1.20.4-20240627.114801-srg.jar%23126!/:?] at jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:?] at jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:77) ~[?:?] at jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:?] at java.lang.reflect.Method.invoke(Method.java:569) ~[?:?] at net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-2.0.17.jar%2362!/:2.0] at net.neoforged.fml.loading.targets.CommonLaunchHandler.serverService(CommonLaunchHandler.java:128) ~[loader-2.0.17.jar%2362!/:2.0] at net.neoforged.fml.loading.targets.CommonServerLaunchHandler.runService(CommonServerLaunchHandler.java:26) ~[loader-2.0.17.jar%2362!/:2.0] at net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-2.0.17.jar%2362!/:2.0] at cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) ~[modlauncher-10.0.9.jar%2365!/:?] at cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) ~[modlauncher-10.0.9.jar%2365!/:?] at cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) ~[modlauncher-10.0.9.jar%2365!/:?] at cpw.mods.modlauncher.Launcher.run(Launcher.java:108) ~[modlauncher-10.0.9.jar%2365!/:?] at cpw.mods.modlauncher.Launcher.main(Launcher.java:78) ~[modlauncher-10.0.9.jar%2365!/:?] at cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) ~[modlauncher-10.0.9.jar%2365!/:?] at cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) ~[modlauncher-10.0.9.jar%2365!/:?] at cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:141) ~[bootstraplauncher-1.1.2.jar:?] at jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:?] at jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:77) ~[?:?] at jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:?] at java.lang.reflect.Method.invoke(Method.java:569) ~[?:?] at net.neoforged.serverstarterjar.Main.mainLaunch(Main.java:306) ~[?:?] at net.neoforged.serverstarterjar.Main.main(Main.java:76) ~[?:?] at jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:?] at jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:77) ~[?:?] at jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:?] at java.lang.reflect.Method.invoke(Method.java:569) ~[?:?] at net.neoforged.serverstarterjar.Main8.main(Main8.java:19) ~[?:?] [25Sep2026 18:05:18.773] [main/FATAL] [net.neoforged.fml.ModLoader/CORE]: Failed to initialize mod containers net.neoforged.fml.ModLoadingException: Framework has class loading errors ?7java.lang.UnsupportedClassVersionError: com/mrcrayfish/framework/FrameworkNeoForge has been compiled by a more recent version of the Java Runtime (class file version 65.0), this version of the Java Runtime only recognizes class file versions up to 61.0 at net.neoforged.fml.javafmlmod.FMLModContainer.(FMLModContainer.java:63) ~[loader-2.0.17.jar%2362!/:2.0] at net.neoforged.fml.javafmlmod.FMLJavaModLanguageProvider$FMLModTarget.loadMod(FMLJavaModLanguageProvider.java:46) ~[loader-2.0.17.jar%2362!/:2.0] at net.neoforged.fml.ModLoader.buildModContainerFromTOML(ModLoader.java:299) ~[loader-2.0.17.jar%2362!/:2.0] at net.neoforged.fml.ModLoader.lambda$buildMods$24(ModLoader.java:266) ~[loader-2.0.17.jar%2362!/:2.0] at java.util.stream.ReferencePipeline$3$1.accept(ReferencePipeline.java:197) ~[?:?] at java.util.HashMap$EntrySpliterator.forEachRemaining(HashMap.java:1850) ~[?:?] at java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:509) ~[?:?] at java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:499) ~[?:?] at java.util.stream.ReduceOps$ReduceOp.evaluateSequential(ReduceOps.java:921) ~[?:?] at java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) ~[?:?] at java.util.stream.ReferencePipeline.collect(ReferencePipeline.java:682) ~[?:?] at net.neoforged.fml.ModLoader.buildMods(ModLoader.java:268) ~[loader-2.0.17.jar%2362!/:2.0] at java.util.stream.ReferencePipeline$3$1.accept(ReferencePipeline.java:197) ~[?:?] at java.util.stream.ReferencePipeline$3$1.accept(ReferencePipeline.java:197) ~[?:?] at java.util.ArrayList$ArrayListSpliterator.forEachRemaining(ArrayList.java:1625) ~[?:?] at java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:509) ~[?:?] at java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:499) ~[?:?] at java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:575) ~[?:?] at java.util.stream.AbstractPipeline.evaluateToArrayNode(AbstractPipeline.java:260) ~[?:?] at java.util.stream.ReferencePipeline.toArray(ReferencePipeline.java:616) ~[?:?] at java.util.stream.ReferencePipeline.toArray(ReferencePipeline.java:622) ~[?:?] at java.util.stream.ReferencePipeline.toList(ReferencePipeline.java:627) ~[?:?] at net.neoforged.fml.ModLoader.gatherAndInitializeMods(ModLoader.java:179) ~[loader-2.0.17.jar%2362!/:2.0] at net.neoforged.neoforge.server.loading.ServerModLoader.load(ServerModLoader.java:32) ~[neoforge-20.4.251-universal.jar%23127!/:?] at net.minecraft.server.Main.main(Main.java:122) ~[server-1.20.4-20240627.114801-srg.jar%23126!/:?] at jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:?] at jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:77) ~[?:?] at jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:?] at java.lang.reflect.Method.invoke(Method.java:569) ~[?:?] at net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-2.0.17.jar%2362!/:2.0] at net.neoforged.fml.loading.targets.CommonLaunchHandler.serverService(CommonLaunchHandler.java:128) ~[loader-2.0.17.jar%2362!/:2.0] at net.neoforged.fml.loading.targets.CommonServerLaunchHandler.runService(CommonServerLaunchHandler.java:26) ~[loader-2.0.17.jar%2362!/:2.0] at net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-2.0.17.jar%2362!/:2.0] at cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) ~[modlauncher-10.0.9.jar%2365!/:?] at cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) ~[modlauncher-10.0.9.jar%2365!/:?] at cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) ~[modlauncher-10.0.9.jar%2365!/:?] at cpw.mods.modlauncher.Launcher.run(Launcher.java:108) ~[modlauncher-10.0.9.jar%2365!/:?] at cpw.mods.modlauncher.Launcher.main(Launcher.java:78) ~[modlauncher-10.0.9.jar%2365!/:?] at cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) ~[modlauncher-10.0.9.jar%2365!/:?] at cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) ~[modlauncher-10.0.9.jar%2365!/:?] at cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:141) ~[bootstraplauncher-1.1.2.jar:?] at jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:?] at jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:77) ~[?:?] at jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:?] at java.lang.reflect.Method.invoke(Method.java:569) ~[?:?] at net.neoforged.serverstarterjar.Main.mainLaunch(Main.java:306) ~[?:?] at net.neoforged.serverstarterjar.Main.main(Main.java:76) ~[?:?] at jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:?] at jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:77) ~[?:?] at jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:?] at java.lang.reflect.Method.invoke(Method.java:569) ~[?:?] at net.neoforged.serverstarterjar.Main8.main(Main8.java:19) ~[?:?] Caused by: java.lang.UnsupportedClassVersionError: com/mrcrayfish/framework/FrameworkNeoForge has been compiled by a more recent version of the Java Runtime (class file version 65.0), this version of the Java Runtime only recognizes class file versions up to 61.0 at java.lang.ClassLoader.defineClass1(Native Method) ~[?:?] at java.lang.ClassLoader.defineClass(ClassLoader.java:1017) ~[?:?] at cpw.mods.cl.ModuleClassLoader.readerToClass(ModuleClassLoader.java:175) ~[securejarhandler-2.1.24.jar:?] at cpw.mods.cl.ModuleClassLoader.lambda$findClass$20(ModuleClassLoader.java:275) ~[securejarhandler-2.1.24.jar:?] at cpw.mods.cl.ModuleClassLoader.loadFromModule(ModuleClassLoader.java:288) ~[securejarhandler-2.1.24.jar:?] at cpw.mods.cl.ModuleClassLoader.findClass(ModuleClassLoader.java:275) ~[securejarhandler-2.1.24.jar:?] at java.lang.ClassLoader.loadClass(ClassLoader.java:637) ~[?:?] at java.lang.Class.forName(Class.java:547) ~[?:?] at net.neoforged.fml.javafmlmod.FMLModContainer.(FMLModContainer.java:57) ~[loader-2.0.17.jar%2362!/:2.0] ... 51 more [25Sep2026 18:05:18.945] [main/ERROR] [net.minecraft.CrashReport/]: Negative index in crash report handler (30/32) [25Sep2026 18:05:18.962] [main/FATAL] [net.neoforged.neoforge.server.loading.ServerModLoader/]: Crash report saved to ./crash-reports/crash-2026-09-25_18.05.18-fml.txt [25Sep2026 18:05:18.964] [main/ERROR] [net.minecraft.server.Main/FATAL]: Failed to start the minecraft server net.neoforged.fml.LoadingFailedException: Loading errors encountered: [ Framework has class loading errors ?7java.lang.UnsupportedClassVersionError: com/mrcrayfish/framework/FrameworkNeoForge has been compiled by a more recent version of the Java Runtime (class file version 65.0), this version of the Java Runtime only recognizes class file versions up to 61.0 ] at net.neoforged.fml.ModLoader.gatherAndInitializeMods(ModLoader.java:185) ~[loader-2.0.17.jar%2362!/:2.0] at net.neoforged.neoforge.server.loading.ServerModLoader.load(ServerModLoader.java:32) ~[neoforge-20.4.251-universal.jar%23127!/:?] at net.minecraft.server.Main.main(Main.java:122) ~[server-1.20.4-20240627.114801-srg.jar%23126!/:?] at jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:?] at jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:77) ~[?:?] at jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:?] at java.lang.reflect.Method.invoke(Method.java:569) ~[?:?] at net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-2.0.17.jar%2362!/:2.0] at net.neoforged.fml.loading.targets.CommonLaunchHandler.serverService(CommonLaunchHandler.java:128) ~[loader-2.0.17.jar%2362!/:2.0] at net.neoforged.fml.loading.targets.CommonServerLaunchHandler.runService(CommonServerLaunchHandler.java:26) ~[loader-2.0.17.jar%2362!/:2.0] at net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-2.0.17.jar%2362!/:2.0] at cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) ~[modlauncher-10.0.9.jar%2365!/:?] at cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) ~[modlauncher-10.0.9.jar%2365!/:?] at cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) ~[modlauncher-10.0.9.jar%2365!/:?] at cpw.mods.modlauncher.Launcher.run(Launcher.java:108) ~[modlauncher-10.0.9.jar%2365!/:?] at cpw.mods.modlauncher.Launcher.main(Launcher.java:78) ~[modlauncher-10.0.9.jar%2365!/:?] at cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) ~[modlauncher-10.0.9.jar%2365!/:?] at cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) ~[modlauncher-10.0.9.jar%2365!/:?] at cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:141) ~[bootstraplauncher-1.1.2.jar:?] at jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:?] at jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:77) ~[?:?] at jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:?] at java.lang.reflect.Method.invoke(Method.java:569) ~[?:?] at net.neoforged.serverstarterjar.Main.mainLaunch(Main.java:306) ~[?:?] at net.neoforged.serverstarterjar.Main.main(Main.java:76) ~[?:?] at jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:?] at jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:77) ~[?:?] at jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:?] at java.lang.reflect.Method.invoke(Method.java:569) ~[?:?] at net.neoforged.serverstarterjar.Main8.main(Main8.java:19) ~[?:?]