I installed facebook connect plugin and now I get this in the back end. I can't do anything now in back end. I tried to delete on my server and still same issue. I'm using
Platform update request
Not Found
The requested URL /theotherbook/ow_updates/index.php:443 was not found on this server.
Additionally, a 404 Not Found error was encountered while trying to use an ErrorDocument to handle the request.