Fatal error: Uncaught Error: Class 'PayPal\Api\Authorization' not found in /home/ultraunlock/public_html/PayPal-PHP-SDK/sample/payments/VoidAuthorization.php:20 Stack trace: #0 {main} thrown in /home/ultraunlock/public_html/PayPal-PHP-SDK/sample/payments/VoidAuthorization.php on line 20