Batman Arkham Knight Error Help Needed.

[Referal]

So I while back when means like a year ago I brought Batman Arkham Knight since I am like a huge fan of Batman and games etc... But anyways I brought (From here using the Points needed) and I posted like a lot more content but once had it shows error and it closes the game down on steam has anyone gotten this game or know any idea how to fix this problem? Please let me know thanks.