Unable to launch game after changing GPU in settings

In the settings I saw 2 options for graphics card:

0. gtx 960
1. gtx 960

I was currently on 0 and switched to 1 to see what was the difference, it crashed the game and now the client doesn't even show up anymore!(I can still hear the sounds) how do I fix this if I can't see/get into the in-game settings?

[solved] changed it back in the ini... lol