I've setup http notification at sofort with the right URL provided at the joomshop backend. The testmoney has arrived, but on returning to the site the following error occurs:
Payment method error
These orders are showing in joomshopping backend corectly as paid.
2014-06-17 13:16:59 #001 - Error payment method file. PM pm_sofortueberweisung:
What could be the problem?