Fatal error: Uncaught Symfony\Component\Debug\Exception\ClassNotFoundException: Attempted to load class "PDO" from the global namespace. Did you forget a "use" statement? in /home/monarchi/public_html/vendor/doctrine/dbal/lib/Doctrine/DBAL/DriverManager.php:172 Stack trace: #0 /home/monarchi/public_html/vendor/doctrine/doctrine-bundle/ConnectionFactory.php(52): Doctrine\DBAL\DriverManager::getConnection(Array, Object(Doctrine\DBAL\Configuration), Object(Symfony\Bridge\Doctrine\ContainerAwareEventManager)) #1 /home/monarchi/public_html/var/cache/prod/appProdProjectContainer.php(913): Doctrine\Bundle\DoctrineBundle\ConnectionFactory->createConnection(Array, Object(Doctrine\DBAL\Configuration), Object(Symfony\Bridge\Doctrine\ContainerAwareEventManager), Array) #2 /home/monarchi/public_html/vendor/symfony/symfony/src/Symfony/Component/DependencyInjection/Container.php(274): appProdProjectContainer->getDoctrine_Dbal_DefaultConnectionService() #3 /home/monarchi/public_html/var/cache/prod/appProdProjectContainer.php(1118): Symfo in /home/monarchi/public_html/vendor/doctrine/dbal/lib/Doctrine/DBAL/DriverManager.php on line 172