Fatal error: Uncaught exception 'PDOException' with message 'SQLSTATE[HY000] [2003] Can't connect to MySQL server on 'frontier-rds.think.vpc' (111)' in /var/www/space-station/vendor/doctrine/dbal/lib/Doctrine/DBAL/Driver/PDOConnection.php:43 Stack trace: #0 /var/www/space-station/vendor/doctrine/dbal/lib/Doctrine/DBAL/Driver/PDOConnection.php(43): PDO->__construct('mysql:host=fron...', 'frontier', 'EiNo2chaez0g', Array) #1 /var/www/space-station/vendor/doctrine/dbal/lib/Doctrine/DBAL/Driver/PDOMySql/Driver.php(45): Doctrine\DBAL\Driver\PDOConnection->__construct('mysql:host=fron...', 'frontier', 'EiNo2chaez0g', Array) #2 /var/www/space-station/vendor/doctrine/dbal/lib/Doctrine/DBAL/Connection.php(360): Doctrine\DBAL\Driver\PDOMySql\Driver->connect(Array, 'frontier', 'EiNo2chaez0g', Array) #3 /var/www/space-station/vendor/doctrine/dbal/lib/Doctrine/DBAL/Connection.php(429): Doctrine\DBAL\Connection->connect() #4 /var/www/space-station/vendor/doctrine/dbal/lib/Doctrine/DBAL/Connection.php(389): Doctrine\DBAL\Connection->get in /var/www/space-station/vendor/doctrine/dbal/lib/Doctrine/DBAL/Driver/AbstractMySQLDriver.php on line 115