Fatal error: Uncaught Error: Class "Symfony\Component\DependencyInjection\Extension\AbstractExtension" not found in /opt/lampp/htdocs/myhospitalnow/suitecrm/core/backend/DependecyInjection/Metadata/MetadataExtension.php:39 Stack trace: #0 {main} thrown in /opt/lampp/htdocs/myhospitalnow/suitecrm/core/backend/DependecyInjection/Metadata/MetadataExtension.php on line 39