I am able to get the PayPal Express V1.0 check out working but when I enable PayPal Website Payments Pro (US) Direct Payments anytime a customer enters their CC information they are re-directed back to their shopping cart with an error message in the URL

https://www.MyDomain.com/shopping_ca...bf2ac932c5a204

All the information in both modules configuration are correct.

Hopefully someone can help me or lead me in the right direction...