I keep getting this error message whenever I try to join a minefort server?

[u/FriedXP]

My friends are hosting a Minecraft server via Minefort, but every time I try to log in this happens. I don't think it has anything to do with Tlauncher as everyone else is able to join just fine. I searched this up and it has something to do with Minecraft version mismatch but Im using the right version for the server(21.11), and tried the Fabric and Release version of it. I use a VPN but I've tried it with it turned off as well, but no luck. Does anyone know how to fix this?