The mod works fine in singleplayer, but it prevents the remote server from starting.

[main/ERROR] [net.minecraftforge.eventbus.EventSubclassTransformer]: An error occurred building event handler java.lang.ClassNotFoundException: net.minecraft.client.model.HumanoidModel at cpw.mods.cl.ModuleClassLoader.loadClass(ModuleClassLoader.java:157) ~[securejarhandler-mohist-2.1.11.jar:?] at java.lang.ClassLoader.loadClass(ClassLoader.java:520) ~[?:?] at net.minecraftforge.eventbus.EventSubclassTransformer.buildEvents(EventSubclassTransformer.java:97) ~[eventbus-6.0.5.jar:?] at net.minecraftforge.eventbus.EventSubclassTransformer.transform(EventSubclassTransformer.java:48) ~[eventbus-6.0.5.jar:?] at net.minecraftforge.eventbus.EventBusEngine.processClass(EventBusEngine.java:26) ~[eventbus-6.0.5.jar:?] at net.minecraftforge.eventbus.service.ModLauncherService.processClassWithFlags(ModLauncherService.java:32) ~[eventbus-6.0.5.jar:6.0.5+0+master.c510e2cc] at cpw.mods.modlauncher.LaunchPluginHandler.offerClassNodeToPlugins(LaunchPluginHandler.java:88) ~[modlauncher-10.0.9.jar:?] at cpw.mods.modlauncher.ClassTransformer.transform(ClassTransformer.java:120) ~[modlauncher-10.0.9.jar:?] at cpw.mods.modlauncher.TransformingClassLoader.maybeTransformClassBytes(TransformingClassLoader.java:50) ~[modlauncher-10.0.9.jar:?] at cpw.mods.cl.ModuleClassLoader.readerToClass(ModuleClassLoader.java:121) ~[securejarhandler-mohist-2.1.11.jar:?] at cpw.mods.cl.ModuleClassLoader.lambda$findClass$15(ModuleClassLoader.java:257) ~[securejarhandler-mohist-2.1.11.jar:?] at cpw.mods.cl.ModuleClassLoader.loadFromModule(ModuleClassLoader.java:267) ~[securejarhandler-mohist-2.1.11.jar:?] at cpw.mods.cl.ModuleClassLoader.findClass(ModuleClassLoader.java:257) ~[securejarhandler-mohist-2.1.11.jar:?] at cpw.mods.cl.ModuleClassLoader.loadClass(ModuleClassLoader.java:144) ~[securejarhandler-mohist-2.1.11.jar:?] at java.lang.ClassLoader.loadClass(ClassLoader.java:520) ~[?:?] at net.kenddie.fantasyarmor.item.FAItems.lambda$static$1(FAItems.java:18) ~[_CONT%20Fantasy%20Armor%20v0.1.jar%23382!/:0.1-1.20.1] at net.minecraftforge.registries.DeferredRegister.lambda$addEntries$1(DeferredRegister.java:386) ~[forge-1.20.1-47.3.5-universal.jar%23539!/:?] at net.minecraftforge.registries.RegisterEvent.register(RegisterEvent.java:59) ~[forge-1.20.1-47.3.5-universal.jar%23539!/:?] at net.minecraftforge.registries.DeferredRegister.addEntries(DeferredRegister.java:386) ~[forge-1.20.1-47.3.5-universal.jar%23539!/:?] at net.minecraftforge.registries.DeferredRegister$EventDispatcher.handleEvent(DeferredRegister.java:328) ~[forge-1.20.1-47.3.5-universal.jar%23539!/:?] at net.minecraftforge.registries.__EventDispatcher_handleEvent_RegisterEvent.invoke(.dynamic) ~[?:?] at net.minecraftforge.eventbus.ASMEventHandler.invoke(ASMEventHandler.java:73) ~[eventbus-6.0.5.jar%23150!/:?] at net.minecraftforge.eventbus.EventBus.post(EventBus.java:319) ~[eventbus-6.0.5.jar%23150!/:?] at net.minecraftforge.eventbus.EventBus.post(EventBus.java:299) ~[eventbus-6.0.5.jar%23150!/:?] at net.minecraftforge.fml.javafmlmod.FMLModContainer.acceptEvent(FMLModContainer.java:155) ~[javafmllanguage-1.20.1-47.3.5.jar%23536!/:?] at net.minecraftforge.fml.ModLoader.lambda$postEventWithWrapInModOrder$33(ModLoader.java:346) ~[fmlcore-1.20.1-47.3.5.jar%23535!/:?] at java.lang.Iterable.forEach(Iterable.java:75) ~[?:?] at net.minecraftforge.fml.ModList.forEachModInOrder(ModList.java:227) ~[fmlcore-1.20.1-47.3.5.jar%23535!/:?] at net.minecraftforge.fml.ModLoader.postEventWithWrapInModOrder(ModLoader.java:344) ~[fmlcore-1.20.1-47.3.5.jar%23535!/:?] at net.minecraftforge.fml.ModLoader.postEventWrapContainerInModOrder(ModLoader.java:337) ~[fmlcore-1.20.1-47.3.5.jar%23535!/:?] at net.minecraftforge.registries.GameData.postRegisterEvents(GameData.java:329) ~[forge-1.20.1-47.3.5-universal.jar%23539!/:?] at net.minecraftforge.common.ForgeStatesProvider.lambda$new$4(ForgeStatesProvider.java:25) ~[forge-1.20.1-47.3.5-universal.jar%23539!/:?] at net.minecraftforge.fml.ModLoader.handleInlineTransition(ModLoader.java:217) ~[fmlcore-1.20.1-47.3.5.jar%23535!/:?] at net.minecraftforge.fml.ModLoader.lambda$dispatchAndHandleError$19(ModLoader.java:209) ~[fmlcore-1.20.1-47.3.5.jar%23535!/:?] at java.util.Optional.ifPresent(Optional.java:178) ~[?:?] at net.minecraftforge.fml.ModLoader.dispatchAndHandleError(ModLoader.java:209) ~[fmlcore-1.20.1-47.3.5.jar%23535!/:?] at net.minecraftforge.fml.ModLoader.lambda$gatherAndInitializeMods$13(ModLoader.java:183) ~[fmlcore-1.20.1-47.3.5.jar%23535!/:?] at java.lang.Iterable.forEach(Iterable.java:75) ~[?:?] at net.minecraftforge.fml.ModLoader.gatherAndInitializeMods(ModLoader.java:183) ~[fmlcore-1.20.1-47.3.5.jar%23535!/:?] at net.minecraftforge.server.loading.ServerModLoader.load(ServerModLoader.java:30) ~[forge-1.20.1-47.3.5-universal.jar%23539!/:?] at net.minecraft.server.Main.main(Main.java:165) ~[server-1.20.1-20230612.114412-srg.jar%23534!/:?] at jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native M [2024-08-21-1.log](https://github.com/user-attachments/files/16715133/2024-08-21-1.log) [2024-08-21-1.log](https://github.com/user-attachments/files/16715135/2024-08-21-1.log) ethod) ~[?:?] at jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:77) ~[?:?] at jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:?] at java.lang.reflect.Method.invoke(Method.java:568) ~[?:?] at net.minecraftforge.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:111) ~[fmlloader-1.20.1-47.3.5.jar%23192!/:?] at net.minecraftforge.fml.loading.targets.CommonLaunchHandler.serverService(CommonLaunchHandler.java:103) ~[fmlloader-1.20.1-47.3.5.jar%23192!/:?] at net.minecraftforge.fml.loading.targets.CommonServerLaunchHandler.lambda$makeService$0(CommonServerLaunchHandler.java:27) ~[fmlloader-1.20.1-47.3.5.jar%23192!/:?] at cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-10.0.9.jar%23103!/:?] at cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-10.0.9.jar%23103!/:?] at cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-10.0.9.jar%23103!/:?] at cpw.mods.modlauncher.Launcher.run(Launcher.java:108) [modlauncher-10.0.9.jar%23103!/:?] at cpw.mods.modlauncher.Launcher.main(Launcher.java:78) [modlauncher-10.0.9.jar%23103!/:?] at cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-10.0.9.jar%23103!/:?] at cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-10.0.9.jar%23103!/:?] at cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:141) [bootstraplauncher-1.1.2.jar:?] at com.mohistmc.MohistMCStart.main(MohistMCStart.java:112) [minecraft.jar:1.20.1-824]