Fatal error: Uncaught mysqli_sql_exception: Connection refused in /var/www/html/dailyrate/backend/database.php:3 Stack trace: #0 /var/www/html/dailyrate/backend/database.php(3): mysqli_connect() #1 /var/www/html/dailyrate/index.php(20): require('...') #2 {main} thrown in /var/www/html/dailyrate/backend/database.php on line 3