[Help] Random crashes

Hi guys,
I got an other problem.

I am using the pawners repack and installed the server things on a VServer.

I managed to connect and so on, but if I use commands like /duel or other chat commands (including gm commands), the mainserver crashes sometimes (its rather random) and I have no clue why that would happen.
Just so you know what I mean by crash: I get an windows error message with "Mainsvr.exe has stopped working..." and everyone gets dced, since the Server is down.

Before that crash happens, one of the kal servers tells me sth like this: "sqlexecdirect() delayed" happend.

Anyone knows whats wrong?

Thanks
-Barry

Edit: I searched for "crashes" and none of the things listed up was helping
Edit2: I am using the exact same repack on my home pc and there it works without crashs
Edit3: I am using sql 2012