Why did I get API error code 11457?
PayPal returned API error code 11457 - Referenced transaction or order is too old.
Cause
The Reference ID refers to a transaction or order that is more than 730 days old.
Solution
Verify that the transaction ID referenced is current and has not expired.
Note: See the Developer Portal for a complete list of NVP/SOAP API error codes.
See also:Transaction Information - Getting Started
PayPal Express Checkout Integration