hi, since installing JEI integration 1.16.4 to my server + mc i keep crashing when i try to join, with this error:
The game crashed whilst unexpected error
Error: java.lang.NoSuchMethodError: net.minecraft.item.ItemStack.getItem()Lnet/minecraft/item/Item;
Exit Code: -1

full crash report:
https://pastebin.com/G9zQVscB

Anyone know the issue?
Thanks!

Well from what I can see you're using the de-obfuscated jar (jeiintegration_1.16.4-6.1.1.11-deobf.jar) rather than just the regular one (jeiintegration_1.16.4-6.1.1.11.jar). Also, the mod is client side only so you shouldn't need it on the server.

Hope that helps :)