Catchable Fatal Error - when listing an ad
We have just encountered a problem, when a user lists an item, we get this error message come up, after it says your ad is now live.
It shows in the just listed page, with the thumbnail and brief description, but when you click it to view it, you get the below message;
Catchable fatal error:
Object of class WP_Error could not be converted to string in /var/sites/w/wightgoods.co.uk/public_html/wp
-content/themes/classipress-313/includes/theme-functions.php on line 1540
Nothing has been installed lately, and just cant figure it out.
Does anyone have any ideas?