Have you tried:
– deactivating all plugins to see if this resolves the problem? If this works, re-activate the plugins one by one until you find the problematic plugin(s).
– switching to the default theme to rule out any theme-specific problems?
– resetting the plugins folder by FTP or phpMyAdmin? Sometimes, an apparently inactive plugin can still cause problems.
– re-uploading the wp-admin and wp-includes folders from a fresh download of WordPress?
– increasing the memory available to PHP?
http://wordpress.org/support/topic/253495#post-1017842
Thanks esmi.
Deactivating the formbuilder plugin fixed the issue. I appreciate your help.
Hello, just found this post. I have same prob. My menu page in my admin appearance is blank except a dot in upper left corner. I have completed ALL of the steps mentioned above, still blank. Tis seems to have happened sometime after installing a plug in Events Calendar Pro – WordPress Premium Plugin.
Any other ideas to help??
I’ve been having the same problem recently, and I’m trying to track down what’s going on I decided to install WP locally and try accessing Appearance > Menus between each step (read: adding my theme, installing plugins, etc.).
On a fresh local install, the Appearance > Menu page works fine. Before adding any new themes or plugins, I imported content from my live WP site (pages, posts, etc.) and immediately the problems started cropping up. When I click on Appearance > Menu, I get a dialog box asking if I want to save nav-menus.php to my hard drive. I assume this is linked to the blank page I’m getting on the live site.
What gives, I wonder?
OK, I just read a post here that warns against having items in the menu which you have recently deleted. I, for instance, removed a couple pages from WordPress and then tried deleting them from the menu, where apparently I should have deleting them from the menu first.
I’ll try resolving it this way and see if I get any results.
