Why did customers get the error "PayPal cannot process your payment. Please contact the merchant to solve this issue"?
PayPal gave a customer a "cannot process your payment" error message.
There is likely an issue with your button or account.
Review your code and compare it to the code snippet provided by PayPal. If this is a hosted button, changes made to the button code will have no impact and the actual hosted button code must be changed.
For help resolving this issue or others, visit PayPal's Contact Customer Service page.
Copy and paste button code