Fatal error: Uncaught PDOException: SQLSTATE[HY000] [2002] Connection refused in /opt/app-root/src/vendor/doctrine/dbal/lib/Doctrine/DBAL/Driver/PDOConnection.php:27 Stack trace: #0 /opt/app-root/src/vendor/doctrine/dbal/lib/Doctrine/DBAL/Driver/PDOConnection.php(27): PDO->__construct('mysql:host=172....', 'admin', '0aMUFMpT5pt6dqQ...', Array) #1 /opt/app-root/src/vendor/doctrine/dbal/lib/Doctrine/DBAL/Driver/PDOMySql/Driver.php(25): Doctrine\DBAL\Driver\PDOConnection->__construct('mysql:host=172....', 'admin', '0aMUFMpT5pt6dqQ...', Array) #2 /opt/app-root/src/vendor/doctrine/dbal/lib/Doctrine/DBAL/Connection.php(356): Doctrine\DBAL\Driver\PDOMySql\Driver->connect(Array, 'admin', '0aMUFMpT5pt6dqQ...', Array) #3 /opt/app-root/src/vendor/doctrine/dbal/lib/Doctrine/DBAL/Connection.php(1436): Doctrine\DBAL\Connection->connect() #4 /opt/app-root/src/vendor/doctrine/dbal/lib/Doctrine/DBAL/Statement.php(71): Doctrine\DBAL\Connection->getWrappedConnection() #5 /opt/app-root/src/vendor/doctrine/dbal/lib/Doctrine/DBAL/Connection.ph in /opt/app-root/src/src/Hannover/InwiBundle/Resources/views/page_header.html.twig on line 38