An Error from Symantec Firewall?

Hi, everyone,

 

I am new to Symantec norton internet security for Mac, and I am using NIS 5.3 on Mountain Lion 10.8.2.

 

Here is the message out of my system log.

 

        kernel: Error 2 registering socket filter (com.symantec.fw.ac.at). Your computer may not be fully protected.

 

Somebody please tell me what is going on and what is com.symantec.fw.ac.at doing. Thanks in advance.

 

 

Best Regards,

 

FrankyNI5