[SV_RPCMessage] playerattack - Exception has been thrown by the target of an invocation

Have the same error here with spaming ingame message when trying to hit a sleep man

I don't use any antikill script :/

Any fix ?

 

So... Server starts freezing after this message:

Code:

[SV_RPCMessage] playerattack - Exception has been thrown by the target of an invocation.

with this error one more error:

Code:

NullReferenceException: Object reference not set to an instance of an object

Anyone can help?

 

Hello everybody! More recently began terrible hang the server. For 5-20 minutes. As I said - this is due to the new cheat, which affects it. Screenshot of error: http://dl1.joxi.net/drive/0005/2015/337887/151011/c804d6bd7a.jpg. How can I fix it?