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PCI ::Security Error on Credit Card CheckoutAsked by admin655 on November 02, 2016 at 12:57 PM
Apparently, when customers are making a payment with a Credit Card, and not PayPal, they are getting this error:
PCI :: Security Error
Security Header is not valid
How can we fix this ASAP?
credit card security error PCI
Please contact your PayPal support, and make sure you are using the right credentials for the PayPal Pro account type.