Have you tried switching to twenty ten theme to rule out theme related as I updated and checked Menus and is working fine.
Yes, thank you, govpatel.
I tried Thematic and Twenty-Ten. Same error. And only on the menus admin page. I can access all of the other admin areas without error. Even my widgets (that have custom menus in them) are working fine, as is the blog. But everytime I click “Menus” on the left, I get the same error on line 433 (something about utf-8).
I’m using PHP5, I disabled all plugins except Akismet, but nothing’s working. I simply cannot get to my menu management on the admin screen.
Okay, I got crazy in the database, trying to fix this, with no idea what I was doing. However, I deleted a few things that said nav_menu_item that had no title. This allowed me to at least click the “menu” admin button. I got a very ugly screen with the word “Collections” at the top. Searched the database again and found one record called collections. I deleted that one, (along with a duplicate custom menu under widgets), and voila!, I am back in business.
I don’t think it’s a coincidence that it happened after the upgrade. It probably reread some stuff that had been bypassed and hiccuped. I am now officially scary in databases.
Thanks for your help.
