Fatal error: Uncaught Error: Class "OpenStack\Common\Resource\OperatorResource" not found in /home/pluskhipuedu/public_html/vendor/php-opencloud/openstack/src/Identity/v3/Models/Assignment.php:11 Stack trace: #0 {main} thrown in /home/pluskhipuedu/public_html/vendor/php-opencloud/openstack/src/Identity/v3/Models/Assignment.php on line 11