Added the facebook app. Told me there was an error, but it didn't prevent me from logging in and using my page. Upgraded to the latest version of wordpress. Now when I try to log in I get the "HTTP 500 Internal Server ERror" page that says "Most likely causes: •The website is under maintenance. •The website has a programming error."
Web page still works, but cannot log in. Went to my host and manually deleted the facebook app directory. Not sure what to do since I cannot log in to my admin page. Thanks!