Gmod Crashing

[Tyki Mikk]

So I haven't played Gmod in a considerable amount of time. Now when I try and launch the game it starts up with the loading screen saying loading in a black box in the right corner and it crashes a few seconds after that with no error message, I've tryed re-installing it, deleting all the related files and installing it again however it did not work and I'm clueless as to what to do.
Any help or suggestions would be appreciated.