If you received the error message Invalid Token and are checking out using PayPal Express Checkout, your order was not processed correctly. You will receive a pending charge in your PayPal account, but that charge will not be processed and should be reversed within 1-3 business days.
To use PayPal as a payment method, you will need to enter in your billing address and then select Continue to payment. You will then be able to select PayPal as the payment method.
