My friend can't join my modded server

I sent the mod files to my friend, but he's unable to join. We have the same files. I'm able to get on the server, but he's met with "Failed to connect to the server this server requires you to install the Origins mod (v0.7.0) to play". I have no idea what to do as this is my first modded server and first time having mods.

Problem with that is that we are using multiple mods for Fabric

Turns out its a problem with the mod files. We are currently trying to fix it to see if that was the only problem.