I'm not getting any errors using the PayPal option. The PP window comes up for customer info like normal. I enter it and am redirected to the cart, which is now empty. No transaction takes place though and no receipts or redirects to the success page take place. I looked in my Manager account and PayPal Express Checkout shows Live. You can reach me at 406-465-6159 if you need to talk and/or share my screen. Thanks