I need help. We're using your Pay Per View plugin and for

Hello!

I need help. We're using your Pay Per View plugin and for some reason, it's started having issues. We had someone try to purchase a story today and PayPal won't take the Credit Card. We did tests with our own card and get the same error: You have entered an invalid number or partial credit card or debit card number. Please check your entry and try again.
We need this fixed ASAP. Our site is hampshirereview.com.

Thanks!
Mandy