I just upgraded my WordPress to 3.0.5 but now whenever I try to access the dashboard or visit the site it keeps showing this message:
Fatal error: Cannot redeclare is_rtl() (previously declared in /home/content/70/4834970/html/calendar/wp-includes/locale.php:347) in /home/content/70/4834970/html/calendar/wp-includes/locale.php on line 349
(I can still access to other pages within WordPress but just not the main page!)
What does it mean and how do i resolve it?
(The site was for work so I desperately need to resolve it fast! Help!)