Server Constantly Crashing

[Danny Boy]

So alot of the time at complete random times my server will crash. The server will be working fine then all of a sudden extreme lag strikes and the servers just constantly saying ghosting and then this will always appear in the console and then crash it.

setCurrentQuotaObject - no QuotaObject '135913' found!

The number changes everytime.

What could be the cause of this?

Here is the console log

[Ad Bot]

[K3k0m@n]

i get this every time i delete or duplicate a brick.
but my server dosent crash.

[Danny Boy]

Nevermind I it seems to be working now.