[26Sep2026 15:59:40.227] [main/INFO] [net.neoforged.fml.startup.Entrypoint/]: JVM Uptime at startup: 98ms [26Sep2026 15:59:40.236] [main/INFO] [net.neoforged.fml.loading.FMLLoader/]: Starting FancyModLoader version 10.0.36 (DEDICATED_SERVER in PROD) [26Sep2026 15:59:40.236] [main/INFO] [net.neoforged.fml.loading.FMLLoader/]: Game directory: /srv/pack [26Sep2026 15:59:40.305] [main/INFO] [net.neoforged.fml.loading.EarlyServiceDiscovery/]: Found 2 early service jars (out of 69) in 16ms [26Sep2026 15:59:40.305] [main/INFO] [net.neoforged.fml.loading.FMLLoader/]: Loading FML Early Services: [26Sep2026 15:59:40.309] [main/INFO] [net.neoforged.fml.loading.FMLLoader/]: - libraries/net/neoforged/fancymodloader/loader/10.0.36/loader-10.0.36.jar [26Sep2026 15:59:40.309] [main/INFO] [net.neoforged.fml.loading.FMLLoader/]: - libraries/net/neoforged/fancymodloader/earlydisplay/10.0.36/earlydisplay-10.0.36.jar [26Sep2026 15:59:40.313] [main/INFO] [net.neoforged.fml.loading.ImmediateWindowHandler/]: Not loading early display in headless mode. [26Sep2026 15:59:40.327] [main/INFO] [net.neoforged.fml.loading.moddiscovery.locators.GameLocator/]: Failed to find common Minecraft classes and resources on the classpath. Assuming we're launching production. [26Sep2026 15:59:40.493] [main/INFO] [net.neoforged.fml.loading.moddiscovery.locators.JarInJarDependencyLocator/]: Found 5 dependencies adding them to mods collection [26Sep2026 15:59:40.495] [main/INFO] [net.neoforged.fml.loading.moddiscovery.ModDiscoverer/]: Mod List: Name Version (Mod Id) CodecUI 1.21.11-1.4.3 (codecui) Minecraft 1.21.11 (minecraft) NeoForge 21.11.45 (neoforge) Polytone 1.21.11-6.6.0 (polytone) [26Sep2026 15:59:40.694] [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 [26Sep2026 15:59:40.708] [main/INFO] [net.neoforged.fml.loading.FMLLoader/]: Loading FML Plugins: [26Sep2026 15:59:40.708] [main/INFO] [net.neoforged.fml.loading.FMLLoader/]: - mods/polytone-1.21.11-6.6.0-neoforge.jar > exp4j-0.4.8.jar [26Sep2026 15:59:40.708] [main/INFO] [net.neoforged.fml.loading.FMLLoader/]: - ~libraries/net/neoforged/neoforge/21.11.45/neoforge-21.11.45-universal.jar > net.neoforged.neoforge-coremods-21.11.45.jar [26Sep2026 15:59:40.708] [main/INFO] [net.neoforged.fml.loading.FMLLoader/]: - mods/polytone-1.21.11-6.6.0-neoforge.jar > nexp-1.2.0.jar [26Sep2026 15:59:40.828] [main/INFO] [net.neoforged.fml.loading.FMLLoader/]: Building game content classloader: - codecui (jar(mods/polytone-1.21.11-6.6.0-neoforge.jar > codecui-neoforge-1.21.11-1.4.3.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)) - polytone (jar(mods/polytone-1.21.11-6.6.0-neoforge.jar)) [26Sep2026 15:59:40.890] [main/INFO] [net.neoforged.fml.loading.FMLLoader/]: Built game content classloader in 67ms [26Sep2026 15:59:41.872] [main/INFO] [MixinExtras|Service/]: Initializing MixinExtras via com.llamalad7.mixinextras.service.MixinExtrasServiceImpl(version=0.5.3). [26Sep2026 15:59:46.762] [modloading-worker-0/INFO] [CodecUI/]: Codec construction mixins inactive (Codec, MapCodec, RecordCodecBuilder) - expected on NeoForge; using reflective schema inference (numeric ranges recovered, optional-field defaults not). [26Sep2026 15:59:46.759] [modloading-worker-0/ERROR] [net.neoforged.fml.javafmlmod.FMLModContainer/LOADING]: Failed to create mod instance. ModID: polytone, class net.mehvahdjukaar.polytone.platform.PolytoneForge java.lang.NoClassDefFoundError: net/minecraft/client/multiplayer/ClientLevel 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 net.neoforged.fml.javafmlmod.FMLModContainer.constructMod(FMLModContainer.java:85) ~[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.multiplayer.ClientLevel 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) ~[?:?] ... 14 more [26Sep2026 15:59:46.800] [modloading-worker-0/INFO] [net.neoforged.neoforge.common.NeoForgeMod/NEOFORGE-MOD]: NeoForge mod loading, version 21.11.45, for MC 1.21.11 [26Sep2026 15:59:46.927] [main/FATAL] [net.neoforged.fml.ModLoader/LOADING]: Failed to wait for future Mod Construction, 1 errors found [26Sep2026 15:59:47.041] [main/ERROR] [net.minecraft.CrashReport/]: Negative index in crash report handler (0/11) [26Sep2026 15:59:47.249] [main/FATAL] [net.neoforged.neoforge.common.NeoForgeMod/]: Preparing crash report with UUID 8e06a91f-4183-45ca-af73-eed8ceb25f9f [26Sep2026 15:59:47.250] [main/FATAL] [net.neoforged.neoforge.server.loading.ServerModLoader/]: Crash report saved to ./crash-reports/crash-2026-09-26_15.59.47-fml.txt [26Sep2026 15:59:47.315] [main/FATAL] [net.neoforged.neoforge.common.NeoForgeMod/]: Preparing crash report with UUID a60d5fce-8269-43be-b19e-b839eb416d88 [26Sep2026 15:59:47.316] [main/ERROR] [net.minecraft.server.Main/FATAL]: Failed to start the minecraft server net.neoforged.fml.ModLoadingException: Loading errors encountered: - Polytone (polytone) has failed to load correctly java.lang.NoClassDefFoundError: net/minecraft/client/multiplayer/ClientLevel 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] [26Sep2026 15:59:47.318] [main/INFO] [net.neoforged.fml.loading.FMLLoader/]: Closing FML Loader 29f21901 [26Sep2026 15:59:47.319] [main/INFO] [net.neoforged.fml.ModLoader/]: Clearing ModLoader