Server constantly crashing

[sexy lenny]

Earlier today we haven't been able to get through two maps without it crashing. Now we can't even get through a single map without the server crashing.

[rbsekac]

It does crash more often but I am on the server every day it is not like this disrupter says.

Basilone

[Spion]

Please tell me on what maps the server is crashing.
Normaly the crashes come from the COOP mode.