Hi Kevin,
This is being caused becuase the form does not have all of the control id's required to build the form.
Check that the attributes on the PaymentDetails control
CreditCardTypeDrpID
CreditCardNameID
CreaditCardNumberID
CreditCardCVV2ID
CreditCardExpiresMonthDrpID
CreditCardExpiresYearDrpID
CreaditCardCustomValidationID
ContactEmailID
CreditCardStartsMonthDrpID
CreditCardStartsYearDrpID
CreditCartIssueNumberDrpID
all refer to valid controls on the page of the right type.
Regards,
Rob
---------------------------UPDATE---------------------------------
Important note, if you are using a custom theme and have upgraded from version 2.1 or 1.1 of commerce the CreditCardTypeDrpID must reference a standard asp dropdownlist control and not a telligent drop down list control.
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