Last night I upgraded WP and my plugins to the newest versions. I continued working on the site and everything was fine.
Now today, I've tried going to http://www.bearcomservices.com/wp-admin and http://www.bearcomservices.com/wp-login.php and http://www.bearcomservices.com/backend
and none of them return a page. It all goes to the 404 error.
This is a client's site, and he wants to know why it's broken... :S Please help!