BFN and GW2 not working help!

So there was a glitch with the EA app where it was all black and I couldn't close it so I tried closing it in task manager and it just all went wrong. I don't know how to explain it but there's a glitch with the DirectX thing? I've been looking at forums, everything but it just won't work. I tried uninstalling it and reinstalling it but it didn't work. Please help! My BFN isn't showing the DirectX glitch anymore, it just crashes. Help!