Single player game automatically boots me out of the server

So, I just downloaded SCars, and when i try to load a singleplayer game, i always return back to the main menu when it finishes loading. I really want to try SCars, but this fucking bug keeps driving me crazy. Can anyone help?

[editline]1st March 2013[/editline]

someone please read

It might be the Scars addon that’s doing that.

check your console to find the addon and remove it.