Fatal error: Uncaught mysqli_sql_exception: Connection refused in /var/www/html/common.php:14 Stack trace: #0 /var/www/html/common.php(14): mysqli->__construct('127.0.0.1', 'root', Object(SensitiveParameterValue), 'boardDB') #1 /var/www/html/list.php(6): mysql_conn() #2 /var/www/html/index.php(116): include('/var/www/html/l...') #3 {main} thrown in /var/www/html/common.php on line 14