Been having a lot of mod issues lately. Trying to use mods made for 1.16.3 and using the CursedForge PC app. Have gotten this message twice. 

Crash report:

---- Minecraft Crash Report ----
// Don't do that.

Time: 2/15/23 11:22 AM
Description: mouseClicked event handler

java.lang.NoClassDefFoundError: net/minecraftforge/common/BiomeDictionary
    at com.pam.pamhc2trees.init.TemperateFruitTreeWorldGenRegistry.addToBiome(TemperateFruitTreeWorldGenRegistry.java:19) ~[?:1.0.1] {re:classloading}
    at com.pam.pamhc2trees.SideProxy.onBiomeLoad(SideProxy.java:65) ~[?:1.0.1] {re:classloading}
    at net.minecraftforge.eventbus.EventBus.doCastFilter(EventBus.java:247) ~[eventbus-3.0.3-service.jar:?] {}
    at net.minecraftforge.eventbus.EventBus.lambda$addListener$11(EventBus.java:239) ~[eventbus-3.0.3-service.jar:?] {}
    at net.minecraftforge.eventbus.EventBus.post(EventBus.java:297) ~[eventbus-3.0.3-service.jar:?] {}
    at net.minecraftforge.common.ForgeHooks.enhanceBiome(ForgeHooks.java:867) ~[?:?] {re:classloading}
    at net.minecraft.world.biome.Biome.lambda$null$7(Biome.java:75) ~[?:?] {re:classloading,pl:accesstransformer:B}
    at com.mojang.datafixers.util.Function8.lambda$null$6(Function8.java:22) ~[datafixerupper-4.0.26.jar:?] {re:classloading}
    at com.mojang.datafixers.util.Function4.lambda$null$2(Function4.java:14) ~[datafixerupper-4.0.26.jar:?] {re:classloading}
    at com.mojang.serialization.DataResult$Instance.ap2(DataResult.java:315) ~[datafixerupper-4.0.26.jar:?] {}
    at com.mojang.datafixers.kinds.Applicative.ap4(Applicative.java:84) ~[datafixerupper-4.0.26.jar:?] {re:classloading}
    at com.mojang.serialization.codecs.RecordCodecBuilder$Instance$7.decode(RecordCodecBuilder.java:404) ~[datafixerupper-4.0.26.jar:?] {}
    at com.mojang.serialization.codecs.RecordCodecBuilder$2.decode(RecordCodecBuilder.java:107) ~[datafixerupper-4.0.26.jar:?] {}
    at com.mojang.serialization.MapDecoder.lambda$compressedDecode$0(MapDecoder.java:52) ~[datafixerupper-4.0.26.jar:?] {}
    at com.mojang.serialization.DataResult.lambda$flatMap$10(DataResult.java:138) ~[datafixerupper-4.0.26.jar:?] {re:classloading}
    at com.mojang.datafixers.util.Either$Left.map(Either.java:38) ~[datafixerupper-4.0.26.jar:?] {}
    at com.mojang.serialization.DataResult.flatMap(DataResult.java:136) ~[datafixerupper-4.0.26.jar:?] {re:classloading}
    at com.mojang.serialization.MapDecoder.compressedDecode(MapDecoder.java:52) ~[datafixerupper-4.0.26.jar:?] {}
    at com.mojang.serialization.MapCodec$MapCodecCodec.decode(MapCodec.java:91) ~[datafixerupper-4.0.26.jar:?] {}
    at com.mojang.serialization.Decoder.parse(Decoder.java:18) ~[datafixerupper-4.0.26.jar:?] {re:classloading}
    at net.minecraft.util.registry.WorldSettingsImport$IResourceAccess$RegistryAccess.func_241879_a(WorldSettingsImport.java:236) ~[?:?] {re:classloading}
    at net.minecraft.util.registry.WorldSettingsImport.func_241805_a_(WorldSettingsImport.java:131) ~[?:?] {re:classloading}
    at net.minecraft.util.registry.WorldSettingsImport.lambda$func_241797_a_$5(WorldSettingsImport.java:105) ~[?:?] {re:classloading}
    at com.mojang.serialization.DataResult.lambda$flatMap$10(DataResult.java:138) ~[datafixerupper-4.0.26.jar:?] {re:classloading}
    at com.mojang.datafixers.util.Either$Left.map(Either.java:38) ~[datafixerupper-4.0.26.jar:?] {}
    at com.mojang.serialization.DataResult.flatMap(DataResult.java:136) ~[datafixerupper-4.0.26.jar:?] {re:classloading}
    at net.minecraft.util.registry.WorldSettingsImport.func_241797_a_(WorldSettingsImport.java:104) ~[?:?] {re:classloading}
    at net.minecraft.util.registry.DynamicRegistries.func_243610_a(SourceFile:213) ~[?:?] {re:classloading}
    at net.minecraft.util.registry.DynamicRegistries.func_243608_a(SourceFile:205) ~[?:?] {re:classloading}
    at net.minecraft.util.registry.WorldSettingsImport.func_244336_a(WorldSettingsImport.java:53) ~[?:?] {re:classloading}
    at net.minecraft.util.registry.DynamicRegistries.func_239770_b_(SourceFile:165) ~[?:?] {re:classloading}
    at net.minecraft.client.gui.screen.CreateWorldScreen.func_243425_a(CreateWorldScreen.java:112) ~[?:?] {re:classloading,pl:runtimedistcleaner:A}
    at net.minecraft.client.gui.screen.WorldSelectionList.func_212330_a(SourceFile:101) ~[?:?] {re:classloading}
    at net.minecraft.client.gui.screen.WorldSelectionList.<init>(SourceFile:83) ~[?:?] {re:classloading}
    at net.minecraft.client.gui.screen.WorldSelectionScreen.func_231160_c_(SourceFile:48) ~[?:?] {re:classloading}
    at net.minecraft.client.gui.screen.Screen.func_231158_b_(Screen.java:323) ~[?:?] {re:classloading,pl:runtimedistcleaner:A}
    at net.minecraft.client.Minecraft.func_147108_a(Minecraft.java:829) ~[?:?] {re:classloading,pl:accesstransformer:B,pl:runtimedistcleaner:A}
    at net.minecraft.client.gui.screen.MainMenuScreen.lambda$addSingleplayerMultiplayerButtons$5(MainMenuScreen.java:139) ~[?:?] {re:classloading,pl:runtimedistcleaner:A}
    at net.minecraft.client.gui.widget.button.Button.func_230930_b_(SourceFile:33) ~[?:?] {re:classloading}
    at net.minecraft.client.gui.widget.button.AbstractButton.func_230982_a_(SourceFile:16) ~[?:?] {re:classloading}
    at net.minecraft.client.gui.widget.Widget.func_231044_a_(Widget.java:136) ~[?:?] {re:classloading,pl:runtimedistcleaner:A}
    at net.minecraft.client.gui.INestedGuiEventHandler.func_231044_a_(SourceFile:27) ~[?:?] {re:classloading}
    at net.minecraft.client.gui.screen.MainMenuScreen.func_231044_a_(MainMenuScreen.java:288) ~[?:?] {re:classloading,pl:runtimedistcleaner:A}
    at net.minecraft.client.MouseHelper.lambda$mouseButtonCallback$0(MouseHelper.java:87) ~[?:?] {re:classloading,pl:runtimedistcleaner:A}
    at net.minecraft.client.gui.screen.Screen.func_231153_a_(Screen.java:425) ~[?:?] {re:classloading,pl:runtimedistcleaner:A}
    at net.minecraft.client.MouseHelper.func_198023_a(MouseHelper.java:85) ~[?:?] {re:classloading,pl:runtimedistcleaner:A}
    at net.minecraft.client.MouseHelper.lambda$null$4(MouseHelper.java:175) ~[?:?] {re:classloading,pl:runtimedistcleaner:A}
    at net.minecraft.util.concurrent.ThreadTaskExecutor.execute(SourceFile:94) ~[?:?] {re:classloading,pl:accesstransformer:B}
    at net.minecraft.client.MouseHelper.lambda$registerCallbacks$5(MouseHelper.java:174) ~[?:?] {re:classloading,pl:runtimedistcleaner:A}
    at org.lwjgl.glfw.GLFWMouseButtonCallbackI.callback(GLFWMouseButtonCallbackI.java:36) ~[lwjgl-glfw-3.2.1.jar:build 12] {}
    at org.lwjgl.system.JNI.invokeV(Native Method) ~[lwjgl-3.2.1.jar:build 12] {}
    at org.lwjgl.glfw.GLFW.glfwWaitEventsTimeout(GLFW.java:3129) ~[lwjgl-glfw-3.2.1.jar:build 12] {}
    at com.mojang.blaze3d.systems.RenderSystem.limitDisplayFPS(SourceFile:127) ~[?:?] {re:classloading}
    at net.minecraft.client.Minecraft.func_195542_b(Minecraft.java:976) ~[?:?] {re:classloading,pl:accesstransformer:B,pl:runtimedistcleaner:A}
    at net.minecraft.client.Minecraft.func_99999_d(Minecraft.java:584) ~[?:?] {re:classloading,pl:accesstransformer:B,pl:runtimedistcleaner:A}
    at net.minecraft.client.main.Main.main(Main.java:184) ~[1.16.3.jar:?] {re:classloading,pl:runtimedistcleaner:A}
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_74] {}
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[?:1.8.0_74] {}
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:1.8.0_74] {}
    at java.lang.reflect.Method.invoke(Method.java:498) ~[?:1.8.0_74] {}
    at net.minecraftforge.fml.loading.FMLClientLaunchProvider.lambda$launchService$0(FMLClientLaunchProvider.java:51) ~[forge-1.16.3-34.1.0.jar:34.1] {}
    at cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:37) [modlauncher-7.0.1.jar:?] {}
    at cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:54) [modlauncher-7.0.1.jar:?] {}
    at cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:72) [modlauncher-7.0.1.jar:?] {}
    at cpw.mods.modlauncher.Launcher.run(Launcher.java:81) [modlauncher-7.0.1.jar:?] {}
    at cpw.mods.modlauncher.Launcher.main(Launcher.java:65) [modlauncher-7.0.1.jar:?] {}
Caused by: java.lang.ClassNotFoundException: net.minecraftforge.common.BiomeDictionary
    at java.lang.ClassLoader.findClass(ClassLoader.java:530) ~[?:1.8.0_74] {}
    at java.lang.ClassLoader.loadClass(ClassLoader.java:424) ~[?:1.8.0_74] {}
    at cpw.mods.modlauncher.TransformingClassLoader.loadClass(TransformingClassLoader.java:105) ~[modlauncher-7.0.1.jar:?] {re:classloading}
    at java.lang.ClassLoader.loadClass(ClassLoader.java:357) ~[?:1.8.0_74] {}
    ... 66 more
    Suppressed: java.lang.ClassNotFoundException
        at cpw.mods.modlauncher.TransformingClassLoader$DelegatedClassLoader.findClass(TransformingClassLoader.java:272) ~[modlauncher-7.0.1.jar:?] {}
        at cpw.mods.modlauncher.TransformingClassLoader.loadClass(TransformingClassLoader.java:135) ~[modlauncher-7.0.1.jar:?] {re:classloading}
        at cpw.mods.modlauncher.TransformingClassLoader.loadClass(TransformingClassLoader.java:97) ~[modlauncher-7.0.1.jar:?] {re:classloading}
        at java.lang.ClassLoader.loadClass(ClassLoader.java:357) ~[?:1.8.0_74] {}
        at com.pam.pamhc2trees.init.TemperateFruitTreeWorldGenRegistry.addToBiome(TemperateFruitTreeWorldGenRegistry.java:19) ~[?:1.0.1] {re:classloading}
        at com.pam.pamhc2trees.SideProxy.onBiomeLoad(SideProxy.java:65) ~[?:1.0.1] {re:classloading}
        at net.minecraftforge.eventbus.EventBus.doCastFilter(EventBus.java:247) ~[eventbus-3.0.3-service.jar:?] {}
        at net.minecraftforge.eventbus.EventBus.lambda$addListener$11(EventBus.java:239) ~[eventbus-3.0.3-service.jar:?] {}
        at net.minecraftforge.eventbus.EventBus.post(EventBus.java:297) ~[eventbus-3.0.3-service.jar:?] {}
        at net.minecraftforge.common.ForgeHooks.enhanceBiome(ForgeHooks.java:867) ~[?:?] {re:classloading}
        at net.minecraft.world.biome.Biome.lambda$null$7(Biome.java:75) ~[?:?] {re:classloading,pl:accesstransformer:B}
        at com.mojang.datafixers.util.Function8.lambda$null$6(Function8.java:22) ~[datafixerupper-4.0.26.jar:?] {re:classloading}
        at com.mojang.datafixers.util.Function4.lambda$null$2(Function4.java:14) ~[datafixerupper-4.0.26.jar:?] {re:classloading}
        at com.mojang.serialization.DataResult$Instance.ap2(DataResult.java:315) ~[datafixerupper-4.0.26.jar:?] {}
        at com.mojang.datafixers.kinds.Applicative.ap4(Applicative.java:84) ~[datafixerupper-4.0.26.jar:?] {re:classloading}
        at com.mojang.serialization.codecs.RecordCodecBuilder$Instance$7.decode(RecordCodecBuilder.java:404) ~[datafixerupper-4.0.26.jar:?] {}
        at com.mojang.serialization.codecs.RecordCodecBuilder$2.decode(RecordCodecBuilder.java:107) ~[datafixerupper-4.0.26.jar:?] {}
        at com.mojang.serialization.MapDecoder.lambda$compressedDecode$0(MapDecoder.java:52) ~[datafixerupper-4.0.26.jar:?] {}
        at com.mojang.serialization.DataResult.lambda$flatMap$10(DataResult.java:138) ~[datafixerupper-4.0.26.jar:?] {re:classloading}
        at com.mojang.datafixers.util.Either$Left.map(Either.java:38) ~[datafixerupper-4.0.26.jar:?] {}
        at com.mojang.serialization.DataResult.flatMap(DataResult.java:136) ~[datafixerupper-4.0.26.jar:?] {re:classloading}
        at com.mojang.serialization.MapDecoder.compressedDecode(MapDecoder.java:52) ~[datafixerupper-4.0.26.jar:?] {}
        at com.mojang.serialization.MapCodec$MapCodecCodec.decode(MapCodec.java:91) ~[datafixerupper-4.0.26.jar:?] {}
        at com.mojang.serialization.Decoder.parse(Decoder.java:18) ~[datafixerupper-4.0.26.jar:?] {re:classloading}
        at net.minecraft.util.registry.WorldSettingsImport$IResourceAccess$RegistryAccess.func_241879_a(WorldSettingsImport.java:236) ~[?:?] {re:classloading}
        at net.minecraft.util.registry.WorldSettingsImport.func_241805_a_(WorldSettingsImport.java:131) ~[?:?] {re:classloading}
        at net.minecraft.util.registry.WorldSettingsImport.lambda$func_241797_a_$5(WorldSettingsImport.java:105) ~[?:?] {re:classloading}
        at com.mojang.serialization.DataResult.lambda$flatMap$10(DataResult.java:138) ~[datafixerupper-4.0.26.jar:?] {re:classloading}
        at com.mojang.datafixers.util.Either$Left.map(Either.java:38) ~[datafixerupper-4.0.26.jar:?] {}
        at com.mojang.serialization.DataResult.flatMap(DataResult.java:136) ~[datafixerupper-4.0.26.jar:?] {re:classloading}
        at net.minecraft.util.registry.WorldSettingsImport.func_241797_a_(WorldSettingsImport.java:104) ~[?:?] {re:classloading}
        at net.minecraft.util.registry.DynamicRegistries.func_243610_a(SourceFile:213) ~[?:?] {re:classloading}
        at net.minecraft.util.registry.DynamicRegistries.func_243608_a(SourceFile:205) ~[?:?] {re:classloading}
        at net.minecraft.util.registry.WorldSettingsImport.func_244336_a(WorldSettingsImport.java:53) ~[?:?] {re:classloading}
        at net.minecraft.util.registry.DynamicRegistries.func_239770_b_(SourceFile:165) ~[?:?] {re:classloading}
        at net.minecraft.client.gui.screen.CreateWorldScreen.func_243425_a(CreateWorldScreen.java:112) ~[?:?] {re:classloading,pl:runtimedistcleaner:A}
        at net.minecraft.client.gui.screen.WorldSelectionList.func_212330_a(SourceFile:101) ~[?:?] {re:classloading}
        at net.minecraft.client.gui.screen.WorldSelectionList.<init>(SourceFile:83) ~[?:?] {re:classloading}
        at net.minecraft.client.gui.screen.WorldSelectionScreen.func_231160_c_(SourceFile:48) ~[?:?] {re:classloading}
        at net.minecraft.client.gui.screen.Screen.func_231158_b_(Screen.java:323) ~[?:?] {re:classloading,pl:runtimedistcleaner:A}
        at net.minecraft.client.Minecraft.func_147108_a(Minecraft.java:829) ~[?:?] {re:classloading,pl:accesstransformer:B,pl:runtimedistcleaner:A}
        at net.minecraft.client.gui.screen.MainMenuScreen.lambda$addSingleplayerMultiplayerButtons$5(MainMenuScreen.java:139) ~[?:?] {re:classloading,pl:runtimedistcleaner:A}
        at net.minecraft.client.gui.widget.button.Button.func_230930_b_(SourceFile:33) ~[?:?] {re:classloading}
        at net.minecraft.client.gui.widget.button.AbstractButton.func_230982_a_(SourceFile:16) ~[?:?] {re:classloading}
        at net.minecraft.client.gui.widget.Widget.func_231044_a_(Widget.java:136) ~[?:?] {re:classloading,pl:runtimedistcleaner:A}
        at net.minecraft.client.gui.INestedGuiEventHandler.func_231044_a_(SourceFile:27) ~[?:?] {re:classloading}
        at net.minecraft.client.gui.screen.MainMenuScreen.func_231044_a_(MainMenuScreen.java:288) ~[?:?] {re:classloading,pl:runtimedistcleaner:A}
        at net.minecraft.client.MouseHelper.lambda$mouseButtonCallback$0(MouseHelper.java:87) ~[?:?] {re:classloading,pl:runtimedistcleaner:A}
        at net.minecraft.client.gui.screen.Screen.func_231153_a_(Screen.java:425) ~[?:?] {re:classloading,pl:runtimedistcleaner:A}
        at net.minecraft.client.MouseHelper.func_198023_a(MouseHelper.java:85) ~[?:?] {re:classloading,pl:runtimedistcleaner:A}
        at net.minecraft.client.MouseHelper.lambda$null$4(MouseHelper.java:175) ~[?:?] {re:classloading,pl:runtimedistcleaner:A}
        at net.minecraft.util.concurrent.ThreadTaskExecutor.execute(SourceFile:94) ~[?:?] {re:classloading,pl:accesstransformer:B}
        at net.minecraft.client.MouseHelper.lambda$registerCallbacks$5(MouseHelper.java:174) ~[?:?] {re:classloading,pl:runtimedistcleaner:A}
        at org.lwjgl.glfw.GLFWMouseButtonCallbackI.callback(GLFWMouseButtonCallbackI.java:36) ~[lwjgl-glfw-3.2.1.jar:build 12] {}
        at org.lwjgl.system.JNI.invokeV(Native Method) ~[lwjgl-3.2.1.jar:build 12] {}
        at org.lwjgl.glfw.GLFW.glfwWaitEventsTimeout(GLFW.java:3129) ~[lwjgl-glfw-3.2.1.jar:build 12] {}
        at com.mojang.blaze3d.systems.RenderSystem.limitDisplayFPS(SourceFile:127) ~[?:?] {re:classloading}
        at net.minecraft.client.Minecraft.func_195542_b(Minecraft.java:976) ~[?:?] {re:classloading,pl:accesstransformer:B,pl:runtimedistcleaner:A}
        at net.minecraft.client.Minecraft.func_99999_d(Minecraft.java:584) ~[?:?] {re:classloading,pl:accesstransformer:B,pl:runtimedistcleaner:A}
        at net.minecraft.client.main.Main.main(Main.java:184) ~[1.16.3.jar:?] {re:classloading,pl:runtimedistcleaner:A}
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_74] {}
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[?:1.8.0_74] {}
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:1.8.0_74] {}
        at java.lang.reflect.Method.invoke(Method.java:498) ~[?:1.8.0_74] {}
        at net.minecraftforge.fml.loading.FMLClientLaunchProvider.lambda$launchService$0(FMLClientLaunchProvider.java:51) ~[forge-1.16.3-34.1.0.jar:34.1] {}
        at cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:37) [modlauncher-7.0.1.jar:?] {}
        at cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:54) [modlauncher-7.0.1.jar:?] {}
        at cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:72) [modlauncher-7.0.1.jar:?] {}
        at cpw.mods.modlauncher.Launcher.run(Launcher.java:81) [modlauncher-7.0.1.jar:?] {}
        at cpw.mods.modlauncher.Launcher.main(Launcher.java:65) [modlauncher-7.0.1.jar:?] {}

A detailed walkthrough of the error, its code path and all known details is as follows:
---------------------------------------------------------------------------------------

-- Head --
Thread: Render thread
Stacktrace:
    at com.pam.pamhc2trees.init.TemperateFruitTreeWorldGenRegistry.addToBiome(TemperateFruitTreeWorldGenRegistry.java:19) ~[?:1.0.1] {re:classloading}
    at com.pam.pamhc2trees.SideProxy.onBiomeLoad(SideProxy.java:65) ~[?:1.0.1] {re:classloading}
    at net.minecraftforge.eventbus.EventBus.doCastFilter(EventBus.java:247) ~[eventbus-3.0.3-service.jar:?] {}
    at net.minecraftforge.eventbus.EventBus.lambda$addListener$11(EventBus.java:239) ~[eventbus-3.0.3-service.jar:?] {}
    at net.minecraftforge.eventbus.EventBus.post(EventBus.java:297) ~[eventbus-3.0.3-service.jar:?] {}
    at net.minecraftforge.common.ForgeHooks.enhanceBiome(ForgeHooks.java:867) ~[?:?] {re:classloading}
    at net.minecraft.world.biome.Biome.lambda$null$7(Biome.java:75) ~[?:?] {re:classloading,pl:accesstransformer:B}
    at com.mojang.datafixers.util.Function8.lambda$null$6(Function8.java:22) ~[datafixerupper-4.0.26.jar:?] {re:classloading}
    at com.mojang.datafixers.util.Function4.lambda$null$2(Function4.java:14) ~[datafixerupper-4.0.26.jar:?] {re:classloading}
    at com.mojang.serialization.DataResult$Instance.ap2(DataResult.java:315) ~[datafixerupper-4.0.26.jar:?] {}
    at com.mojang.datafixers.kinds.Applicative.ap4(Applicative.java:84) ~[datafixerupper-4.0.26.jar:?] {re:classloading}
    at com.mojang.serialization.codecs.RecordCodecBuilder$Instance$7.decode(RecordCodecBuilder.java:404) ~[datafixerupper-4.0.26.jar:?] {}
    at com.mojang.serialization.codecs.RecordCodecBuilder$2.decode(RecordCodecBuilder.java:107) ~[datafixerupper-4.0.26.jar:?] {}
    at com.mojang.serialization.MapDecoder.lambda$compressedDecode$0(MapDecoder.java:52) ~[datafixerupper-4.0.26.jar:?] {}
    at com.mojang.serialization.DataResult.lambda$flatMap$10(DataResult.java:138) ~[datafixerupper-4.0.26.jar:?] {re:classloading}
    at com.mojang.datafixers.util.Either$Left.map(Either.java:38) ~[datafixerupper-4.0.26.jar:?] {}
    at com.mojang.serialization.DataResult.flatMap(DataResult.java:136) ~[datafixerupper-4.0.26.jar:?] {re:classloading}
    at com.mojang.serialization.MapDecoder.compressedDecode(MapDecoder.java:52) ~[datafixerupper-4.0.26.jar:?] {}
    at com.mojang.serialization.MapCodec$MapCodecCodec.decode(MapCodec.java:91) ~[datafixerupper-4.0.26.jar:?] {}
    at com.mojang.serialization.Decoder.parse(Decoder.java:18) ~[datafixerupper-4.0.26.jar:?] {re:classloading}
    at net.minecraft.util.registry.WorldSettingsImport$IResourceAccess$RegistryAccess.func_241879_a(WorldSettingsImport.java:236) ~[?:?] {re:classloading}
    at net.minecraft.util.registry.WorldSettingsImport.func_241805_a_(WorldSettingsImport.java:131) ~[?:?] {re:classloading}
    at net.minecraft.util.registry.WorldSettingsImport.lambda$func_241797_a_$5(WorldSettingsImport.java:105) ~[?:?] {re:classloading}
    at com.mojang.serialization.DataResult.lambda$flatMap$10(DataResult.java:138) ~[datafixerupper-4.0.26.jar:?] {re:classloading}
    at com.mojang.datafixers.util.Either$Left.map(Either.java:38) ~[datafixerupper-4.0.26.jar:?] {}
    at com.mojang.serialization.DataResult.flatMap(DataResult.java:136) ~[datafixerupper-4.0.26.jar:?] {re:classloading}
    at net.minecraft.util.registry.WorldSettingsImport.func_241797_a_(WorldSettingsImport.java:104) ~[?:?] {re:classloading}
    at net.minecraft.util.registry.DynamicRegistries.func_243610_a(SourceFile:213) ~[?:?] {re:classloading}
    at net.minecraft.util.registry.DynamicRegistries.func_243608_a(SourceFile:205) ~[?:?] {re:classloading}
    at net.minecraft.util.registry.WorldSettingsImport.func_244336_a(WorldSettingsImport.java:53) ~[?:?] {re:classloading}
    at net.minecraft.util.registry.DynamicRegistries.func_239770_b_(SourceFile:165) ~[?:?] {re:classloading}
    at net.minecraft.client.gui.screen.CreateWorldScreen.func_243425_a(CreateWorldScreen.java:112) ~[?:?] {re:classloading,pl:runtimedistcleaner:A}
    at net.minecraft.client.gui.screen.WorldSelectionList.func_212330_a(SourceFile:101) ~[?:?] {re:classloading}
    at net.minecraft.client.gui.screen.WorldSelectionList.<init>(SourceFile:83) ~[?:?] {re:classloading}
    at net.minecraft.client.gui.screen.WorldSelectionScreen.func_231160_c_(SourceFile:48) ~[?:?] {re:classloading}
    at net.minecraft.client.gui.screen.Screen.func_231158_b_(Screen.java:323) ~[?:?] {re:classloading,pl:runtimedistcleaner:A}
    at net.minecraft.client.Minecraft.func_147108_a(Minecraft.java:829) ~[?:?] {re:classloading,pl:accesstransformer:B,pl:runtimedistcleaner:A}
    at net.minecraft.client.gui.screen.MainMenuScreen.lambda$addSingleplayerMultiplayerButtons$5(MainMenuScreen.java:139) ~[?:?] {re:classloading,pl:runtimedistcleaner:A}
    at net.minecraft.client.gui.widget.button.Button.func_230930_b_(SourceFile:33) ~[?:?] {re:classloading}
    at net.minecraft.client.gui.widget.button.AbstractButton.func_230982_a_(SourceFile:16) ~[?:?] {re:classloading}
    at net.minecraft.client.gui.widget.Widget.func_231044_a_(Widget.java:136) ~[?:?] {re:classloading,pl:runtimedistcleaner:A}
    at net.minecraft.client.gui.INestedGuiEventHandler.func_231044_a_(SourceFile:27) ~[?:?] {re:classloading}
    at net.minecraft.client.gui.screen.MainMenuScreen.func_231044_a_(MainMenuScreen.java:288) ~[?:?] {re:classloading,pl:runtimedistcleaner:A}
    at net.minecraft.client.MouseHelper.lambda$mouseButtonCallback$0(MouseHelper.java:87) ~[?:?] {re:classloading,pl:runtimedistcleaner:A}
-- Affected screen --
Details:
    Screen name: net.minecraft.client.gui.screen.MainMenuScreen
Stacktrace:
    at net.minecraft.client.gui.screen.Screen.func_231153_a_(Screen.java:425) ~[?:?] {re:classloading,pl:runtimedistcleaner:A}
    at net.minecraft.client.MouseHelper.func_198023_a(MouseHelper.java:85) ~[?:?] {re:classloading,pl:runtimedistcleaner:A}
    at net.minecraft.client.MouseHelper.lambda$null$4(MouseHelper.java:175) ~[?:?] {re:classloading,pl:runtimedistcleaner:A}
    at net.minecraft.util.concurrent.ThreadTaskExecutor.execute(SourceFile:94) ~[?:?] {re:classloading,pl:accesstransformer:B}
    at net.minecraft.client.MouseHelper.lambda$registerCallbacks$5(MouseHelper.java:174) ~[?:?] {re:classloading,pl:runtimedistcleaner:A}
    at org.lwjgl.glfw.GLFWMouseButtonCallbackI.callback(GLFWMouseButtonCallbackI.java:36) ~[lwjgl-glfw-3.2.1.jar:build 12] {}
    at org.lwjgl.system.JNI.invokeV(Native Method) ~[lwjgl-3.2.1.jar:build 12] {}
    at org.lwjgl.glfw.GLFW.glfwWaitEventsTimeout(GLFW.java:3129) ~[lwjgl-glfw-3.2.1.jar:build 12] {}
    at com.mojang.blaze3d.systems.RenderSystem.limitDisplayFPS(SourceFile:127) ~[?:?] {re:classloading}
    at net.minecraft.client.Minecraft.func_195542_b(Minecraft.java:976) ~[?:?] {re:classloading,pl:accesstransformer:B,pl:runtimedistcleaner:A}
    at net.minecraft.client.Minecraft.func_99999_d(Minecraft.java:584) ~[?:?] {re:classloading,pl:accesstransformer:B,pl:runtimedistcleaner:A}
    at net.minecraft.client.main.Main.main(Main.java:184) ~[1.16.3.jar:?] {re:classloading,pl:runtimedistcleaner:A}
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_74] {}
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[?:1.8.0_74] {}
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:1.8.0_74] {}
    at java.lang.reflect.Method.invoke(Method.java:498) ~[?:1.8.0_74] {}
    at net.minecraftforge.fml.loading.FMLClientLaunchProvider.lambda$launchService$0(FMLClientLaunchProvider.java:51) ~[forge-1.16.3-34.1.0.jar:34.1] {}
    at cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:37) [modlauncher-7.0.1.jar:?] {}
    at cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:54) [modlauncher-7.0.1.jar:?] {}
    at cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:72) [modlauncher-7.0.1.jar:?] {}
    at cpw.mods.modlauncher.Launcher.run(Launcher.java:81) [modlauncher-7.0.1.jar:?] {}
    at cpw.mods.modlauncher.Launcher.main(Launcher.java:65) [modlauncher-7.0.1.jar:?] {}

-- System Details --
Details:
    Minecraft Version: 1.16.3
    Minecraft Version ID: 1.16.3
    Operating System: Mac OS X (x86_64) version 10.16
    Java Version: 1.8.0_74, Oracle Corporation
    Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation
    Memory: 298383064 bytes (284 MB) / 1740111872 bytes (1659 MB) up to 3817865216 bytes (3641 MB)
    CPUs: 4
    JVM Flags: 3 total; -Xss1M -Xmx4096m -Xms256m
    ModLauncher: 7.0.1+78+master.e9771d8
    ModLauncher launch target: fmlclient
    ModLauncher naming: srg
    ModLauncher services: 
        /mixin-0.8.1.jar mixin PLUGINSERVICE 
        /eventbus-3.0.3-service.jar eventbus PLUGINSERVICE 
        /forge-1.16.3-34.1.0.jar object_holder_definalize PLUGINSERVICE 
        /forge-1.16.3-34.1.0.jar runtime_enum_extender PLUGINSERVICE 
        /accesstransformers-2.2.0-shadowed.jar accesstransformer PLUGINSERVICE 
        /forge-1.16.3-34.1.0.jar capability_inject_definalize PLUGINSERVICE 
        /forge-1.16.3-34.1.0.jar runtimedistcleaner PLUGINSERVICE 
        /mixin-0.8.1.jar mixin TRANSFORMATIONSERVICE 
        /forge-1.16.3-34.1.0.jar fml TRANSFORMATIONSERVICE 
    FML: 34.1
    Forge: net.minecraftforge:34.1.0
    FML Language Providers: 
        [email protected]
        minecraft@1
    Mod List: 
        forge-1.16.3-34.1.0-client.jar Minecraft {[email protected] DONE}
        pamhc2foodextended-1.16.3-1.0.4.jar Pam's HarvestCraft 2 Food Extended {pamhc2foodextended@version DONE}
        forge-1.16.3-34.1.0-universal.jar Forge {[email protected] DONE}
        pamhc2trees-1.16.3-1.0.1.jar Pam's HarvestCraft 2 Fruit Trees {[email protected] DONE}
        pamhc2foodcore-1.16.3-1.0.2.jar Pam's HarvestCraft 2 Food Core {pamhc2foodcore@version DONE}
        pamhc2crops-1.16.3-1.0.2.jar Pam's HarvestCraft 2 Crops {pamhc2crops@version DONE}
    Launched Version: forge-34.1.0
    Backend library: LWJGL version 3.2.1 build 12
    Backend API: Intel(R) HD Graphics 6000 GL version 2.1 INTEL-16.5.14, Intel Inc.
    GL Caps: Using framebuffer using ARB_framebuffer_object extension
    Using VBOs: Yes
    Is Modded: Definitely; Client brand changed to 'forge'
    Type: Client (map_client.txt)
    GPU Warnings: version: 2.1
    Graphics mode: fancy
    Resource Packs: 
    Current Language: English (US)
    CPU: 4x Intel(R) Core(TM) i7-5650U CPU @ 2.20GHz

The version you are using is no longer supported on this forum.

Please update to a modern version of Minecraft to receive support.

Currently supported versions are 1.19.3 (Latest), 1.19.2, and 1.18.2 (LTS).