Buddypress: Fatal error: Maximum execution time of 30 seconds exceeded

Hey guys, curious as to why my Buddypress has suddenly started to go barmy and present me with this error, was working one second then not the next.

Here's exactly what it says:-

Fatal error: Maximum execution time of 30 seconds exceeded in /folder/folder/folder/folder/folder/folder/folder/wp-content/plugins/buddypress/bp-activity/bp-activity-classes.php on line 1016

Any help would be greatly appreciated

Kind Regards
~Matt