Thanks for the vote!
Thanks for your comment. Well... maybe a little strange. :P
Internal errors can also be caused by sites that couldn't be fetched. I didn't get a chance to properly implement an error page.
The other source of errors (according to the logs) is Everyauth, which I expected to be a rock-solid module, but apparently doesn't handle a network-attached session storage well.
thanks so much!
Thanks for playing!