Yes that is the correct plug in and problem. If you are ahving the same problem, check out this article and it should clear it up for you. Thanks for the help!!
OK, I just went back and did a search and saw a mention of a redirection plug in. I deactivated mine and my site can back just fine. Any clue why that would happen or what I can do with all my redirects now?
I actually just found that it has something to do with the SEO ultimate plug in. When I deactivated it, the editors are just fine.
I am at such a loss. I don’t know much about all this at all and everything was workig fine until now. I can do everthing else on my dashboard just fine but when I click on the appearnace editor or the plug in editor, I get the error.