About 2 or 3 days ago, one of the blogs I run came under a few problems - I couldn't seem to login, unfortunately my host doesn't give helpful error messages, and it says "Internal Server Error, this is an error with your script, check your error log for more information.", the error log contains this:-
<!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML 2.0//EN"> <html><head> <title>404 Not Found</title> </head><body> <h1>Not Found</h1> The requested URL was not found on this server. </body></html>
The URL Is ideasman.com (not linked), I can see the login page and when I logout the page looks okay, it's only when I login that I get the error.
I've uploaded the wp-admin directory (and the rest of wordpress) multiple times. I'm just completely clueless as to why this is occurring.
It was working fine a few days ago, and - despite writing a few posts - I've done nothing in the backend.