Some functions are corrupted. Pleaaase help

I can't play crossfire after they have patch alot.

i had searched by google more than an hour because it's come this Error:
Code_field [08-0400-00000000-513]
Some functions of the operating System has been corrupted. Please,
close any program which is affecting game client and restart the system

I had close all programms but it dont go.


Please help

What antivirus do you use?
Do you use ha.ck?
Cheat engine?
And sometimes game booster affect the game
(soz for my bad english)

If it still doesnt work after what akilas1234 said ^^^^ try reinstalling it.