Troubleshooting a broken website takes a lot of time at this end – We’re a one man team and not only do I run my own troop, but I have plenty of other responsibilities as well as a full time job, so if you’re knowledgeable you too can become your own website debugger.  You may need shell, ftp or database.  I can happily grant you access to these services quite quickly compared to fixing any mistakes!

White screen of death (when upgrading one of your plugins breaks)

Backing up your site from the command line:

Backing up your database from phpmyadmin:

Changed the site URL? (I suggest changing the database option)