Order shows placed and cc info given, but card is never charged through PayPal

When a customer places an order and pays with a credit card (set up through PayPal), the order comes through and the credit card number is emailed to me, but the card is never charged through PayPal and I can't figure out what I have done incorrectly. My PayPal is set up to process credit cards for me, and I think i have everything in my cart set up correctly, but apparently something is going wrong and I don't know where. Can someone please help me?

In your Zen Cart admin area, the "Credit Card" module is an "offline processing" module ... meaning ... ALL IT DOES is collect and forward the credit card numbers.
It's documented here:
https://www.zen-cart.com/tutorials/index.php?article=67
If you keep using that module, all you're going to have is credit card numbers, and no payment, unless you have a merchant account with your bank and have the ability to process credit cards manually yourself.
https://www.zen-cart.com/tutorials/index.php?article=285

If you want to collect payments via PayPal, you'll need to use one of the PayPal modules instead.
The option to pay with credit card is available on the PayPal site after the customer transfers there to make payment.
https://www.zen-cart.com/tutorials/index.php?article=106