If you have that error just come up to this.
Here is a 5 easy quick steps
1. Go to My Computer(For Windows XP) or Computer(For Windows 7 and Vista)
2. Go to the Disk where you have installed your Crossfire. (ex. Local Disk (C or (D or (E
3. Go to Program Files.
4. Then Delete the GameClub Launcher.
5. Now Open Crossfire , and let it update