Every theme crashes at random

Hi everyone. This is an issue I’ve been having for about 2 years. To troubleshoot I have switched WP themes 3 times, uninstalled all plugins, insured all categories have posts, kept up with all WP updates, plugin updates, etc. But still about once every couple of weeks I visit my site and see this:

http://www.doyoudigi.com/temp/WP_crash.jpg

I’m hosted at Godaddy.

The error messages point to the default theme files, whereas I don’t even use the default theme.

For the record, this kept happening whether or not I had plugins activated, so I decided to re-activate the plugins I needed and just remain diligent to “reset” the theme as needed. I’m using the following plugins currently:

– Akismet
– cforms II
– Limit Posts
– LinkWithin
– Maintenance Mode
– WordPress.com Stats
– WP-PageNavi