Fatal error: Uncaught mysqli_sql_exception: Connection refused in /var/www/html/panel/assets/file/connection.php:8 Stack trace: #0 /var/www/html/panel/assets/file/connection.php(8): mysqli_connect() #1 /var/www/html/includes/header.php(2): include('...') #2 /var/www/html/index.php(1): include('...') #3 {main} thrown in /var/www/html/panel/assets/file/connection.php on line 8