Flarum encountered a boot error (Doctrine\DBAL\Driver\PDOException)<br />
            <b>SQLSTATE[HY000] [2002] Can't connect to local MySQL server through socket '/var/lib/mysql/mysql.sock' (2)</b><br />
            thrown in <b>/var/www/flarum/vendor/doctrine/dbal/lib/Doctrine/DBAL/Driver/PDOConnection.php</b> on line <b>31</b>