[Opserty]

Disable your modifications and see if you still get this error. Enable your modifications one by one and check each time, this will allow you to diagnose the problem Plugin. (If you look in includes/functions.php on Line 5166 there should be a hook/template name there, you can then look in the Plugin/style manager for this and it will give you an idea of the problem Plugin/template.)

[offtopic]

Originally Posted by snakes1100

Edit php.ini and change the variable max_execution_time = 30 to = 60 and restart apache/iis

If a page is running for more then 30 seconds then something much be wrong with the code, I doubt there is anything related to backup or maintenance in functions.php. Also look at the bit where it says eval()'d code that normally tells you its a Plugin or Template.

[/offtopic]