Thanks for the prompt reply!
Just so I understand…
In FTP, I’ve navigated to wp-content – Themes. My theme is Thesis_1.6. So you’re suggesting that I simply change the name of that folder — so that WP will automatically switch to the “default” theme? Is that correct?
And if that works, what next?
BTW I’m assuming that my “Theme.zip” and “Plugin.zip” email backups are NOT the full database backup I should be making every day?