Hello, I got a few bugs. I think they are all tied to your mod so I am leaving this in here.

[09Mar2025 04:44:57.175] [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/client/model/tools/AdvancedEntityModel
at java.base/java.lang.ClassLoader.defineClass1(Native Method) ~[?:?]
at java.base/java.lang.ClassLoader.defineClass(Unknown Source) ~[?:?]
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$20(ModuleClassLoader.java:298) ~[securejarhandler-3.0.8.jar:?]
at cpw.mods.securejarhandler/cpw.mods.cl.ModuleClassLoader.loadFromModule(ModuleClassLoader.java:311) ~[securejarhandler-3.0.8.jar:?]
at cpw.mods.securejarhandler/cpw.mods.cl.ModuleClassLoader.findClass(ModuleClassLoader.java:298) ~[securejarhandler-3.0.8.jar:?]
at cpw.mods.securejarhandler/cpw.mods.cl.ModuleClassLoader.loadClass(ModuleClassLoader.java:214) ~[securejarhandler-3.0.8.jar:?]
at java.base/java.lang.ClassLoader.loadClass(Unknown Source) ~[?:?]
at TRANSFORMER/[email protected]/com.github.L_Ender.cataclysm.client.event.ClientEvent.(ClientEvent.java:70) ~[L_Ender's%20Cataclysm-2.58-1.21.1.jar%23634!/:?]
at TRANSFORMER/[email protected]/com.github.L_Ender.cataclysm.Cataclysm.(Cataclysm.java:44) ~[L_Ender's%20Cataclysm-2.58-1.21.1.jar%23634!/:?]
at java.base/jdk.internal.reflect.DirectConstructorHandleAccessor.newInstance(Unknown Source) ~[?:?]
at java.base/java.lang.reflect.Constructor.newInstanceWithCaller(Unknown Source) ~[?:?]
at java.base/java.lang.reflect.Constructor.newInstance(Unknown Source) ~[?:?]
at MC-BOOTSTRAP/[email protected]/net.neoforged.fml.javafmlmod.FMLModContainer.constructMod(FMLModContainer.java:115) ~[loader-4.0.38.jar%23136!/:4.0]
at MC-BOOTSTRAP/[email protected]/net.neoforged.fml.ModLoader.lambda$constructMods$3(ModLoader.java:153) ~[loader-4.0.38.jar%23136!/:4.0]
at MC-BOOTSTRAP/[email protected]/net.neoforged.fml.ModLoader.lambda$dispatchParallelTask$7(ModLoader.java:231) ~[loader-4.0.38.jar%23136!/:4.0]
at java.base/java.util.concurrent.CompletableFuture.uniHandle(Unknown Source) [?:?]
at java.base/java.util.concurrent.CompletableFuture$UniHandle.tryFire(Unknown Source) [?:?]
at java.base/java.util.concurrent.CompletableFuture$Completion.exec(Unknown Source) [?:?]
at java.base/java.util.concurrent.ForkJoinTask.doExec(Unknown Source) [?:?]
at java.base/java.util.concurrent.ForkJoinPool$WorkQueue.topLevelExec(Unknown Source) [?:?]
at java.base/java.util.concurrent.ForkJoinPool.scan(Unknown Source) [?:?]
at java.base/java.util.concurrent.ForkJoinPool.runWorker(Unknown Source) [?:?]
at java.base/java.util.concurrent.ForkJoinWorkerThread.run(Unknown Source) [?:?]
Caused by: java.lang.ClassNotFoundException: com.github.L_Ender.lionfishapi.client.model.tools.AdvancedEntityModel
at java.base/jdk.internal.loader.BuiltinClassLoader.loadClass(Unknown Source) ~[?:?]
at java.base/java.lang.ClassLoader.loadClass(Unknown Source) ~[?:?]
at cpw.mods.securejarhandler/cpw.mods.cl.ModuleClassLoader.loadClass(ModuleClassLoader.java:216) ~[securejarhandler-3.0.8.jar:?]
at java.base/java.lang.ClassLoader.loadClass(Unknown Source) ~[?:?]
at cpw.mods.securejarhandler/cpw.mods.cl.ModuleClassLoader.loadClass(ModuleClassLoader.java:216) ~[securejarhandler-3.0.8.jar:?]
at java.base/java.lang.ClassLoader.loadClass(Unknown Source) ~[?:?]
... 24 more

This is the crash report, the above was pulled just above the crash.

https://gnomebot.dev/paste/mclogs/bEindHA

Did you install lionfish API ?

Did you install lionfish API ?

I have now installed it. Needs to be updated on curseforge to auto install with the mod like other dependencies.

Thank you for the reply.