I just updated my blog to WordPress 3.3 and my admin page has gone partly blank. I only have the menu items Dashboard and Profile, all other menu items are gone. So I can't publish pages or post, nor can I edit comments, uninstall plugins, change theme, etc.
I don't have multiple login accounts, I'm the only user and administrator.
The site keeps working though. I have searched some solutions but none seem to work.
* renamed the plugins folder, no solution
* removed the template folder inside the themes folder, no solution
* manually installed WP3.3, no solution
I don't receive any error messages but my hosting provider was able to retreive the following error in their error logs:
[Tue Dec 13 12:02:42 2011] [error] [client x.x.x.x] PHP Fatal error: require() [<a
href='function.require'>function.require]: Failed opening required '/var/www/html/wp-
includes/load.php' (include_path='.:/usr/share/pear:/usr/share/php:/php/includes') in
/var/www/html/wp-settings.php on line 21
They claim the error is caused by WP itself, some bug in their code. I replaced both files load.php and wp-settings.php but no solution.
I also have my website offline using localhost and Wamp. Here everything works fine: same versions, same files, same plugins.
Thanks for the advice on how to solve my problem with the disappearing menu items.