Just kidding. It’s not fixed. I don’t have a file named agenda-widget-form.php just a file called widget-form.php. I tried copying that in several places and even renaming it but no fix.
Ok, I think I fixed it. Thanks for the workaround. Hope it’s really fixed. 🙂
OK, I’m really new at this. I can see my files but don’t really understand exactly what I’m copying and pasting. Can someone give me an “Idiot’s guide?”
I also received the same error. I just viewed the Widgets – didn’t even try to edit. Everything was fine until then.