Hello i am having issue with the pluggin its my first Day when I trye to get a payment from outside the page and return to my site it says invalid key, and when I made a payment from inside my page says unathourize Credit card, I nerd resolve quick as possible..
Im afraid you will to wait a loooong time… this plugin has terrible support. I recomend you to use the free version and update manually your order status, or find another plugin that works. If you do, please let me know.