Error on receiving Purchase order

[wperng]

Hi,

I create a purchase order and try to click "Quick Receive Purchase  
Order" to receive it.  But I got an exception, if the "Ship if capture  
fail" option is turned on in product store.

The exception is "Error trying to begin transaction, could not process  
method: The current transaction is marked for rollback, not beginning  
a new transaction and aborting current operation; the rollbackOnly was  
caused by: Error in Service [captureOrderPayments]: Cannot ship order  
because credit card captures were unsuccessful calling service  
balanceInventoryItems in receiveInventoryProduct".

I don't see anywhere I can give this purchase an payment method.   
Since all my purchase orders will be paid by offline payment, can  
anyone please tell me how to solve this ?

William