Fatal error: Uncaught Error: Class "GrahamCampbell\Manager\AbstractManager" not found in /home/daroomokamel/public_html/whmcs_api_wraper/vendor/darthsoup/laravel-whmcs/src/WhmcsManager.php:27 Stack trace: #0 {main} thrown in /home/daroomokamel/public_html/whmcs_api_wraper/vendor/darthsoup/laravel-whmcs/src/WhmcsManager.php on line 27