Fatal error: Uncaught Error: Class 'GuzzleHttp\Promise\RejectionException' not found in /home/edmedu/www/edmclass.com.bak/edmclass-admin/vendor/guzzlehttp/promises/src/AggregateException.php:10 Stack trace: #0 {main} thrown in /home/edmedu/www/edmclass.com.bak/edmclass-admin/vendor/guzzlehttp/promises/src/AggregateException.php on line 10