I just did a upgrade of one of my website (wales.susieqtipsandtrips.com) to WordPress 3.5 and now this website is not running anymore due to a HTTP-500 error.
In the error log I found this:
FastCGI: server "/usr/local/php54/bin/php-cgi" stderr: PHP message: PHP Fatal error: Cannot redeclare sticky_class() (previously declared in /sites/susieqtipsandtrips.com/wales/wp-includes/post-template.php:584) in /sites/susieqtipsandtrips.com/wales/wp-includes/deprecated.php on line 3192.
Does this mean I have to change something in the deprecated.php file, line 3192? And into what exactly? Or do I have to change templates (Mantra into Twenty Eleven) or delete/deactivate some plugins?
Thanks for you help!
Please note I'm not a programmer, so please keep it simple!