Fatal error: Uncaught Error: Class "Doctrine\ORM\Mapping\Driver\YamlDriver" not found in /home/dbdevweblamp/public_html/vendor/doctrine/orm/lib/Doctrine/ORM/Mapping/Driver/SimplifiedYamlDriver.php:12 Stack trace: #0 {main} thrown in /home/dbdevweblamp/public_html/vendor/doctrine/orm/lib/Doctrine/ORM/Mapping/Driver/SimplifiedYamlDriver.php on line 12