Fatal error: Uncaught Error: Class 'OpenCloud\Common\PersistentObject' not found in /home/app/htdocs/lidia/vendor/rackspace/php-opencloud/lib/OpenCloud/Identity/Resource/Role.php:34 Stack trace: #0 {main} thrown in /home/app/htdocs/lidia/vendor/rackspace/php-opencloud/lib/OpenCloud/Identity/Resource/Role.php on line 34