Invalid Configuration

Hi,

It appears as though the rest of you question may not have gone through completely.  However, If the error is pointing out an invalid configuration, it means your billing agreement has been disabled or is inactive. You should enable your PayPal Payment Pro in your account. The process is quite simple”

Open your developer.paypal.com account, open applications to access your account. Click the account you are trying to upgrade to Payment Pro. Click Profile to find the option Upgrade to Pro in the dialogue box.

If there is something else you are looking for, just let us know and we will be happy to do what we can.