when a customer tries to buy something pay pal says this :"This payment cannot be completed and your account has not been charged. Please contact your merchant for more information."
"Return to merchant and try a different payment method
We are not able to process your payment using your PayPal account at this time. Please return to the merchant's website and try using a different payment method (if available)."
pls help me
Joomla: 3.1.5
JoomShopping: 4.4.0
JoomShopping: 4.4.0