Terrafirmacraft mod not working

So I use tLauncher with Forge and when I try to join my server terrafirmacraft only works partially. I use the newest version of the mod and

there are only a few things that work, everything else is bugged or doesnt work. On singleplayer it works fine. Any advice?

Yes, I did install it. Maybe I used the wrong Version? I will check out tomorrow. Thanks for replying!