This is a very rare error, but can happen if you ordered a book on one dotphoto account, then created another dotphoto account with a new signin and the same email address, and tried to order from the new account. This confuses the ordering system.

The solution is to alter the signin of the old account -- even changing it, for instance, from barrygibb to barrygibbOLD- - and then to change the signin of the new account to the old account signin -- for instance, barrygibb. When placing your book order, use your current account's new (old) signin -- in this example, barrygibb -- and your order should go through.