Crossfire error.. :/

Can you describe what you are doing in the "middle of a game" just prior to receiving the error?

Also I recommend you send in a support ticket to Crossfire >> Technical Support.
In that ticket, describe in accurate detail how you get that error to help us try to recreate it.
At the same time go to these two different places:

There should be a .dmp file created at the moment your game crashed (Send error report) and you click submit.

Pathway to the folder where they are kept:
C:\Program Files (x86)\Z8Games\Crossfire\Report
The second part of the file name is the crash date.

Note that it's the weekend right now and the earliest Support may view your ticket is on Monday.

Also there's reports found here:
C:\CFLog
where there are .txt files of the crashes.