Legacy4J Version

1.21.4, any version

Mod Loader Version

file:///C:/Users/david/Downloads/Legacy4J-1.21.4-1.8.0.2518.5-fabric.jar

Bug/Glitch Occurrence Context

I can play the game fine, but i cannot enter the crafting menu?

Crash Report

No response

What happened wrong?

when i tried to enter the crafting menu, the game showed this

This isn't the context, as this doesn't happen normally, it's not possible to know how you managed to get this Network Protocol Error.
Please provide the latest log