by admin » Thu Apr 21, 2011 7:12 pm
Hello,
PayPal New API has many bugs and is not fully supported at the moment, there are many complains about PayPal API recently with or without One Page Checkout. If it is possible, please use PayPal legacy payment module, which uses a redirect from thank you page. There should be no additional configuration of One Page Checkout if your payment module works before installing One Page Checkout.
If you use PayPal Pro which is a commercial PayPal payment module which collects credit cards on the checkout site, there should be no problem with this one neither.
Please describe the problem that you have with the payment module and if you get the error without One Page Checkout install.
Regards,
Stan Scholtz, RuposTel s.r.o.