Fatal error: Uncaught Error: Class "PayPal\Api\Authorization" not found in /home/thewpked/public_html/demos/khalid_bcu/vendor/paypal/rest-api-sdk-php/sample/payments/VoidAuthorization.php:20 Stack trace: #0 {main} thrown in /home/thewpked/public_html/demos/khalid_bcu/vendor/paypal/rest-api-sdk-php/sample/payments/VoidAuthorization.php on line 20