Fatal error: Uncaught mysqli_sql_exception: Access denied for user 'root'@'localhost' in /var/www/houserental/db_connect.php:3 Stack trace: #0 /var/www/houserental/db_connect.php(3): mysqli->__construct() #1 /var/www/houserental/login.php(7): include('...') #2 {main} thrown in /var/www/houserental/db_connect.php on line 3