This is a generic error message, which is triggered if there is no "Success" response received when the DoRefund call is made. The empty brackets () suggest that there was no response received at all, which is odd.There was a problem refunding the transaction amount specified. ()
The logs Dennis posted don't contain any evidence of a DoRefund request being sent to PayPal. You might check to see if there are any logs in the /cache folder instead ? Sometimes the admin dumps its PP logs there.



