Hack tool detected

So when i try to play on my old laptop i keep getting a Hack tool has been detected (1) (0:5:0:0)

I know this error doesnt mean u hack and can happen to anyone randomly but it happens so frequently that i barely can join a game and even if i manage to join a game il get kicked out within a minute.

I already reinstalled crossfire and restarted the laptop. A while ago i reinstalled windows and after that the laptop collected dust stored in the clossed cuz no one uses it. So it almost has no other programs installed that could interfere with crossfire.

Does anyone have any idea what i could try now? Tips are welcome.
Thanks for reading.