Big Problem with Gameserver please i realy need a fix.

Hello everybody.
I have a big problem. For some unknown reason my Gameserver crashed all the time with a runtime error.
Server worked for more than a month and now this.
In Agentserver i only see this error:

PHP Code:

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someone try to free msg already freed! #600d 


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and gatewayserver say:

PHP Code:

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Dublicated IBUV Registration!.... 


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In Log-files i see nothing.
The Runtime error comes unregular. The Monster count is not high and Ram is enough on the machine.
Please Help me.
Thanks

If you want i can do Screenshots of Error for better understanding.

please post screen shot
and what the last thing u do at Database

GatewayServer
Attachment 119634
I can't find the Message from Agentserver. I will post as fast as i can.
I did nothing on Server. Worked for 1-2 month.
After OS-Update then the unregular crashes.
Now till yesterday works.

We have the same problem.. Server is working fine then iy crashes.. If server is not open to public it doesn't crash

maybe im wrong, but sound like a captcha problem, search forum for the non-captcha agentserver and try it