Fatal error: Uncaught Error: Class "Doctrine\ORM\Mapping\Driver\YamlDriver" not found in /opt/lampp/htdocs/myhospitalnow/suitecrm/vendor/doctrine/orm/src/Mapping/Driver/SimplifiedYamlDriver.php:14 Stack trace: #0 {main} thrown in /opt/lampp/htdocs/myhospitalnow/suitecrm/vendor/doctrine/orm/src/Mapping/Driver/SimplifiedYamlDriver.php on line 14