Fatal error: Uncaught mysqli_sql_exception: Connection refused in /var/www/html/dist/lib/dbfunction.php:4 Stack trace: #0 /var/www/html/dist/lib/dbfunction.php(4): mysqli_connect() #1 /var/www/html/index.php(14): opendb() #2 {main} thrown in /var/www/html/dist/lib/dbfunction.php on line 4