Me and my friend are in a server where I (Cannot) use the "Counter attack" and other wom skill books, while my friend can?

-Everytime I try to hold guard for the (counter attack animation) i get kicked with this error.

we have the same modpack, same datapacks and resourcepacks, at this point I don't know what went wrong.

I'm pretty sure it's not thanos bug because if it was, why didn't my friend get kicked as well?