I'll make it easy for you because I was struggling with this for over a week with my r9 390. For some reason when the card is overclocked the game crashes. I'm not sure what makes it do this but as soon as you turn it off you'll stop getting the error.
I'm assuming you're getting the dx error or whatever it's called. Something about failing to initialize.
I've also noticed any type of overlay software like msi afterburner or something like that also causes the game to crash.
Try the above solutions and let us know.