Hi, I have some problems with this module. I installed the last one. But when I want to pay something and I click on the button pay in Paypal. It say someting like "the order is already paid". I don't know the exact words in English because my shop is Dutch. But it is something like this message. How could I fix it. And the second question. Do I need to set up some special things in my Paypal account for this module? It would be glad if someone could help me. Thanks!