See if disabling existing plugins solves the issue? It’s possible that one of the old plugin or even your current theme is not compatible with WP 3.5.1.
Moderator
t-p
(@t-p)
have you tried:
-deactivating ALL plugins (yes, all) temporarily to see if this resolves the problem. If this works, re-activate them individually (one-by-one) to find the problematic plugin(s). If you can’t get into your admin dashboard, try deactivating via FTP or SFTP or whatever file management application your host provides. If applicible, also remember to deactivate any plugins in the mu-plugins folder. The easiest way is to rename that folder to mu-plugins-old.
– resetting the plugins folder by FTP or PhpMyAdmin. Sometimes, an apparently inactive plugin can still cause problems (because the hooks remain unless plugins completely removed or some plugins stick around in cached files. So by renaming the folder, you break them and force them inactive).
– To rule out any theme-specific issue, try switching to the unedited default theme for a moment using the WP dashboard. If you don’t have access to your admin area, you can switch to the default theme by renaming your current theme’s folder in wp-content/themes and adding “-old” to the end of the folder name using via FTP or SFTP or whatever file management application your host provides.
Hi,
I tried deactivating all pluggins.
Still the same error message.
Thanks
Andy
1. Where are you hosted?
2. Did this just start happening?
But did you also try changing the theme back to WP default theme?
If nothing works, then for the last resource, see if downloading the WP zip file and manually uploading to your server using FTP client solves the issue.
