Why do I receive the error “Item Not Found” when I press submit on the payment screen?

The registration system gives this error when the credit card information has been entered incorrectly. It does not mean that the card has been declined. This error means the credit card has not been found. To try to clear this error please check that the card information has been entered correctly (correct number of digits, no spaces, numbers have been entered properly, expiration date is correct, etc.) and then submit once more. If you continue to receive this error please contact the Registration team.