I am getting the same when trying to set up an account. Any suggestions would be gratefully appreciated; I guess it's a busy weekend thing - I'll check back later.
Thanks for your help so far; I am getting the error:
An error occurred attempting to process your request. Please try again momentarily. (Error Code DEADBEEF)
when accessing the hosting account control panel at: https://x10hosting.com/control/login.php
Presumably, this is related to the previous error and too will pass in time.