Fatal error: Uncaught Error: Interface 'GuzzleHttp\Promise\PromisorInterface' not found in /var/www/html/quptmp-widgets-2/x_libs/aws-sdk-php-master/src/Waiter.php:22 Stack trace: #0 {main} thrown in /var/www/html/quptmp-widgets-2/x_libs/aws-sdk-php-master/src/Waiter.php on line 22