Why did I get API error code 10626?
PayPal returned API error code 10626 - Transaction refused due to internal security systems.
Cause
Internal Security systems rejected an attempted Direct Payment transaction.
Solution
Ask the customer to provide a different payment method.
Note: PayPal doesn't give merchants specific reasons for payment declines. If more information is required, have the buyer contact PayPal Business Support.
Note: See the Developer Portal for a complete list of NVP/SOAP API error codes.