Fatal error: Uncaught Symfony\Component\Debug\Exception\FatalThrowableError: Call to a member function setFetchMode() on boolean in /var/www/vendor/doctrine/dbal/lib/Doctrine/DBAL/Connection.php:918 Stack trace: #0 /var/www/vendor/doctrine/orm/lib/Doctrine/ORM/Persisters/Entity/BasicEntityPersister.php(884): Doctrine\DBAL\Connection->executeQuery('SELECT t0.id AS...', Array, Array) #1 /var/www/vendor/doctrine/orm/lib/Doctrine/ORM/EntityRepository.php(181): Doctrine\ORM\Persisters\Entity\BasicEntityPersister->loadAll(Array, NULL, NULL, NULL) #2 /var/www/vendor/doctrine/orm/lib/Doctrine/ORM/EntityRepository.php(164): Doctrine\ORM\EntityRepository->findBy(Array) #3 /var/www/src/AppBundle/Controller/SitemapController.php(90): Doctrine\ORM\EntityRepository->findAll() #4 /var/www/vendor/symfony/symfony/src/Symfony/Component/HttpKernel/HttpKernel.php(151): AppBundle\Controller\SitemapController->sitemapAction(Object(Symfony\Component\HttpFoundation\Request)) #5 /var/www/vendor/symfony/symfony/src/Symfony/Component/HttpKernel/Htt in /var/www/vendor/doctrine/dbal/lib/Doctrine/DBAL/Driver/AbstractMySQLDriver.php on line 121