My customers are facing problems while trying to make a payment using PayPal Business. What should I do?

When you configure PayPal Business as the payment gateway, your customers will be required to log in to a US-PayPal account to make the payment for the Payment Page which means that their country must be set to United States in their PayPal account.

Even though you have a PayPal Business account, you can select PayPal Standard as the payment option on the configuration screen if you want your customers to make payments using their credit cards.