I've been using All In One for about 6 months. It worked great till today.
Like some others here, I upgraded to 4.2 and got the multiple error message. I tried to edit the code, and when that didn't work I deleted All In One, then tried another favicon app, which didn't work. Deleted it. Tried another, still no favicon. Deleted again.
Then I thought I'd hit on the solution and installed an earlier version of All In One - 4.0. It installed properly, but still no favicons. Now I'm figuring that I screwed up something by trying the other plug-ins.
The web site is at http://tvwriter.net . What do I need to do?