.5 and .5.1 game won't start

Hi I have had this game for a while and never had a problem until the .5 release
I have gotten rid of all the mod I had on the game, reinstalled the game, checked for any crash reports
All I know is it starts like usual then it says on the game screen waiting UI and then I get an error saying game has stopped working
Other than that I have no other errors
If it does help I don't have windows 10 I have 7
Also I am running it threw steam