this mod is not compatible with fancy menu
java.lang.ClassCastException: class de.keksuccino.fancymenu.menu.fancy.item.playerentity.PlayerEntityCustomizationItem$MenuPlayerEntity cannot be cast to class net.minecraft.class_742 (de.keksuccino.fancymenu.menu.fancy.item.playerentity.PlayerEntityCustomizationItem$MenuPlayerEntity and net.minecraft.class_742 are in unnamed module of loader net.fabricmc.loader.impl.launch.knot.KnotClassLoader @2473b9ce)
[17:47:35] [Render thread/INFO]: [STDERR]: at net.minecraft.class_591.handler$coo000$setupAnimEnd(class_591.java:540)
[17:47:35] [Render thread/INFO]: [STDERR]: at net.minecraft.class_591.method_17087(class_591.java:179)
[17:47:35] [Render thread/INFO]: [STDERR]: at net.minecraft.class_591.method_2819(class_591.java:22)
[17:47:35] [Render thread/INFO]: [STDERR]: at net.minecraft.class_922.method_4054(class_922.java:129)
[17:47:35] [Render thread/INFO]: [STDERR]: at de.keksuccino.fancymenu.menu.fancy.item.playerentity.PlayerEntityCustomizationItem$MenuPlayerRenderer.render(PlayerEntityCustomizationItem.java:453)
[17:47:35] [Render thread/INFO]: [STDERR]: at de.keksuccino.fancymenu.menu.fancy.item.playerentity.PlayerEntityCustomizationItem.renderEntityStatic(PlayerEntityCustomizationItem.java:317)
[17:47:35] [Render thread/INFO]: [STDERR]: at de.keksuccino.fancymenu.menu.fancy.item.playerentity.PlayerEntityCustomizationItem.lambda$renderPlayerEntity$0(PlayerEntityCustomizationItem.java:292)
[17:47:35] [Render thread/INFO]: [STDERR]: at com.mojang.blaze3d.systems.RenderSystem.runAsFancy(RenderSystem.java:1171)
[17:47:35] [Render thread/INFO]: [STDERR]: at de.keksuccino.fancymenu.menu.fancy.item.playerentity.PlayerEntityCustomizationItem.renderPlayerEntity(PlayerEntityCustomizationItem.java:291)
[17:47:35] [Render thread/INFO]: [STDERR]: at de.keksuccino.fancymenu.menu.fancy.item.playerentity.PlayerEntityCustomizationItem.render(PlayerEntityCustomizationItem.java:236)
[17:47:35] [Render thread/INFO]: [STDERR]: at de.keksuccino.fancymenu.menu.fancy.menuhandler.MenuHandlerBase.onRenderPost(MenuHandlerBase.java:1246)
[17:47:35] [Render thread/INFO]: [STDERR]: at de.keksuccino.fancymenu.menu.fancy.menuhandler.custom.MainMenuHandler.onRenderPost(MainMenuHandler.java:117)
[17:47:35] [Render thread/INFO]: [STDERR]: at jdk.internal.reflect.GeneratedMethodAccessor53.invoke(Unknown Source)
[17:47:35] [Render thread/INFO]: [STDERR]: at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
[17:47:35] [Render thread/INFO]: [STDERR]: at java.base/java.lang.reflect.Method.invoke(Method.java:568)
[17:47:35] [Render thread/INFO]: [STDERR]: at de.keksuccino.konkrete.events.EventHandler.invokeEvent(EventHandler.java:115)
[17:47:35] [Render thread/INFO]: [STDERR]: at de.keksuccino.konkrete.events.EventHandler.callEventsFor(EventHandler.java:102)
[17:47:35] [Render thread/INFO]: [STDERR]: at net.minecraft.class_757.handler$ccm000$beforeRenderScreen(class_757.java:6047)
[17:47:35] [Render thread/INFO]: [STDERR]: at net.minecraft.class_757.method_3192(class_757.java:877)
[17:47:35] [Render thread/INFO]: [STDERR]: at net.minecraft.class_310.method_1523(class_310.java:1122)
[17:47:35] [Render thread/INFO]: [STDERR]: at net.minecraft.class_310.method_1514(class_310.java:737)
[17:47:35] [Render thread/INFO]: [STDERR]: at net.minecraft.client.main.Main.main(Main.java:236)
[17:47:35] [Render thread/INFO]: [STDERR]: at net.fabricmc.loader.impl.game.minecraft.MinecraftGameProvider.launch(MinecraftGameProvider.java:460)
[17:47:35] [Render thread/INFO]: [STDERR]: at net.fabricmc.loader.impl.launch.knot.Knot.launch(Knot.java:74)
[17:47:35] [Render thread/INFO]: [STDERR]: at net.fabricmc.loader.impl.launch.knot.KnotClient.main(KnotClient.java:23)

I can see the error in the log, but it also happens without 3d Skin Layers installed. So it's some other mod.
Edit: After some testing it seems to be incompatible with not enough animations because it's rendering a Player that is not a real player. But since it doesn't cause a crash this is probably a bit lower priority.

Hm there is no mention of anything 3d skin layers related in the crash log, and it seems to work fine for me?

Like I said, that log is because of NotEnoughAnimations, not 3d Skin Layers.

3d Skin layers works exactly like without it(no skin, but it renders).

no when 3d layer is installed the player model of fancy menu not working
is there a way to add an option to disable 3d layer when is it not in game

Managed to load a skin with 3d skin layers mod installed, they render in 2d because of how screwed up that model gets rendered(FancyMenu should redo this logic IMO), but it does 100% work.

Managed to load a skin with 3d skin layers mod installed, they render in 2d because of how screwed up that model gets rendered(FancyMenu should redo this logic IMO), but it does 100% work.
I have retested and it works but it spam the console and yes the problem come from not enough animation BUT with 3d skin layer the pseudo and the parrot dont show

06:49:01.455
net.minecraft.class_2983
Render thread
[STDERR]: java.lang.NullPointerException: Cannot invoke "net.minecraft.class_1297.method_19538()" because "$$0" is null
06:49:01.455
net.minecraft.class_2983
Render thread
[STDERR]: at net.minecraft.class_1297.method_5858(class_1297.java:1414)
06:49:01.455
net.minecraft.class_2983
Render thread
[STDERR]: at net.minecraft.class_976.handler$dfb001$render(class_976.java:541)
06:49:01.455
net.minecraft.class_2983
Render thread
[STDERR]: at net.minecraft.class_976.method_17159(class_976.java)
06:49:01.455
net.minecraft.class_2983
Render thread
[STDERR]: at net.minecraft.class_976.method_4199(class_976.java:33)
06:49:01.455
net.minecraft.class_2983
Render thread
[STDERR]: at net.minecraft.class_922.method_4054(class_922.java:145)
06:49:01.455
net.minecraft.class_2983
Render thread
[STDERR]: at de.keksuccino.fancymenu.menu.fancy.item.playerentity.PlayerEntityCustomizationItem$MenuPlayerRenderer.render(PlayerEntityCustomizationItem.java:453)
06:49:01.455
net.minecraft.class_2983
Render thread
[STDERR]: at de.keksuccino.fancymenu.menu.fancy.item.playerentity.PlayerEntityCustomizationItem.renderEntityStatic(PlayerEntityCustomizationItem.java:319)
06:49:01.455
net.minecraft.class_2983
Render thread
[STDERR]: at de.keksuccino.fancymenu.menu.fancy.item.playerentity.PlayerEntityCustomizationItem.lambda$renderPlayerEntity$0(PlayerEntityCustomizationItem.java:292)
06:49:01.455
net.minecraft.class_2983
Render thread
[STDERR]: at com.mojang.blaze3d.systems.RenderSystem.runAsFancy(RenderSystem.java:1171)
06:49:01.455
net.minecraft.class_2983
Render thread
[STDERR]: at de.keksuccino.fancymenu.menu.fancy.item.playerentity.PlayerEntityCustomizationItem.renderPlayerEntity(PlayerEntityCustomizationItem.java:291)
06:49:01.455
net.minecraft.class_2983
Render thread
[STDERR]: at de.keksuccino.fancymenu.menu.fancy.item.playerentity.PlayerEntityCustomizationItem.render(PlayerEntityCustomizationItem.java:236)
06:49:01.455
net.minecraft.class_2983
Render thread
[STDERR]: at de.keksuccino.fancymenu.menu.fancy.helper.layoutcreator.content.LayoutElement.render(LayoutElement.java:690)
06:49:01.455
net.minecraft.class_2983
Render thread
[STDERR]: at de.keksuccino.fancymenu.menu.fancy.helper.layoutcreator.LayoutEditorScreen.method_25394(LayoutEditorScreen.java:555)
06:49:01.455
net.minecraft.class_2983
Render thread
[STDERR]: at de.keksuccino.fancymenu.menu.fancy.helper.layoutcreator.PreloadedLayoutEditorScreen.method_25394(PreloadedLayoutEditorScreen.java:872)
06:49:01.455
net.minecraft.class_2983
Render thread
[STDERR]: at net.minecraft.class_757.method_3192(class_757.java:877)
06:49:01.456
net.minecraft.class_2983
Render thread
[STDERR]: at net.minecraft.class_310.method_1523(class_310.java:1122)
06:49:01.456
net.minecraft.class_2983
Render thread
[STDERR]: at net.minecraft.class_310.method_1514(class_310.java:737)
06:49:01.456
net.minecraft.class_2983
Render thread
[STDERR]: at net.minecraft.client.main.Main.main(Main.java:236)
06:49:01.456
net.minecraft.class_2983
Render thread
[STDERR]: at net.fabricmc.loader.impl.game.minecraft.MinecraftGameProvider.launch(MinecraftGameProvider.java:460)
06:49:01.456
net.minecraft.class_2983
Render thread
[STDERR]: at net.fabricmc.loader.impl.launch.knot.Knot.launch(Knot.java:74)
06:49:01.456
net.minecraft.class_2983
Render thread
[STDERR]: at net.fabricmc.loader.impl.launch.knot.KnotClient.main(KnotClient.java:23)

and the console is spam

Fixed by fancy menu mod

OK then I'll take your word for it.