Fatal error: Uncaught mysqli_sql_exception: Connection refused in /var/www/html/includes/db.php:12 Stack trace: #0 /var/www/html/includes/db.php(12): mysqli->__construct() #1 /var/www/html/hiw.php(9): include('...') #2 {main} thrown in /var/www/html/includes/db.php on line 12