How do I connect my PayPal form to my Paypal account to accept a payment?

How do I connect my PayPal form to my Paypal account to accept a payment? I had a client try to fill it out and use it but it wouldn't accept a payment... I'm not sure what to do.

Make sure you have a PayPal Pro account if you are using the PayPal Pro field to allow for credit card payment directly in the form.  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 you do not wish to use PayPal Pro or do not have a Pro account, switch to using the regular PayPal field and it the form should work.

If neither of these solutions work for you, let us know what specifically is occurring when payment is attempted and we will be happy to have another look.