I can't get pehkui to work on my aternos server

so i made a server so me and my friends can play around with the origins mod. It all worked untill we decided to get the Origins++ mod which requried pehkui on the server. I have been trying to fix it for an hour now and i don't know what i am doing wrong. This is what it says everytime

Quote from Adriel

You don't have the same version of pehkui on both sides.

Also make sure you have the fabric version installed and not the forge version.

thank you so much i figured it out now XD turns out i was just trying to do everything the hard way