OsCommerce migration/CC transaction errors
we migrated OScommerce from [url removed, login to view] to [url removed, login to view]
and switched to PayPal website payments Pro.
It seems that customers that are newly registered (or not) are having
issues that generate this error "We apologize for the inconvenience, but PayPal only accepts Visa, Master Card, Discover, and American Express. Please use a different credit card". It only happenes SOMETIMES, as there is no consistency. It either lies within MySQL 5, migration or customer signup or PayPal WPP.. WE have completed successful transactions. While I can't give you access to the servers I can give you relevant files to work on.