I think renaming ACP folder alone won't do any good. Undo rename and see if it pops up again.

If that doesn't help contact NewEraCracker here, he's using/nulling IPB. Last time I used IPB was 2 years ago.
Smith Reviewed by Smith on . How to remove database error Friends, recently i upgraded my Board from 3.1.2 to 3.1.4 after that i receive database error when i post any thing in my site. However the post has been successfully post after refreshing the page. I receive this error. There appears to be an error with the database. If you are seeing this page, it means there was a problem communicating with our database. Sometimes this error is temporary and will go away when you refresh the page. Sometimes the error will Rating: 5