Want a quick way to screw up your site?
type this in your browser:http://www.mysite.com/admin/settings/save.php
If you were recently logged into website baker, and you still have the logged in cookie, you will have successfully cleared the database table for your settings. Which will make the front end not work with a message like "Unable to load language file".
This happened to me because as I was typing into my address bar, the auto-fill from previous paths showed up, so as I was scrolling through the list, I accidentally selected the admin/settings/save.php historical path.
This runs the save with no data, essentially clearing out all the data. This should really be patched or at least fixed in WB3, as it was quite scary and easy to accidentally do. Perhaps save.php?saveall or something is needed, as I think most browsers don't add the ?xxx stuff to the historical path, but I may be wrong.
To fix this, I luckily had another website baker site setup and went into cpanel and copy the raw database defaults back in and that got me back up to seeing the site again. Then I had to re-enter all my website header/footer/keywords/settings etc.