Error while a checkout with credit card payment using test payflow verisign properties

[sudheer baddam]

Hi,
   I am working on a customized old (2006) version of ofbiz.
   We have also customized checkout workflow and are using test payflow verisign payment properties for testing the credit card payment option.
   On clicking Submit Order at the end of the checkout I am getting the below error. Does it have to do anything with the test payflow verisign properties?
    What is this property processAuthResult.authRefNum supposed to have?
    Please let me know if anyone has encountered similar error before.

The Following Errors Occurred:

  Error
in authOrderPayments service:
org.ofbiz.service.GenericServiceException: Could not commit transaction
for service [authOrderPayments] call: Roll back error, could not commit
transaction, was rolled back instead because of: Service
[processAuthResult] threw an unexpected
exception/errororg.ofbiz.service.ServiceValidationException: The
following required parameter is missing: [processAuthResult.authRefNum]
(The following required parameter is missing:
[processAuthResult.authRefNum]) (Could not commit transaction for
service [authOrderPayments] call: Roll back error, could not commit
transaction, was rolled back instead because of: Service
[processAuthResult] threw an unexpected
exception/errororg.ofbiz.service.ServiceValidationException: The
following required parameter is missing: [processAuthResult.authRefNum]
(The following required parameter is missing:
[processAuthResult.authRefNum]))

Thanks,
Sudheer