Crashing to desktop when I join my server


I have been having this problem for about 2 months now, i go to join my server and I crash to the desktop with no error. The server is fine, Me and my client just crash. People are playing on the server so I know its just me that has the problem. And it is not my computer as I have tried 3 PC’s and 1 Mac and they all do the same thing. I Asked my server support what may be causing it and they said a addon but That would effect everyone? Would it not?

Any help would be great

Thanks in advance