Fatal error: Uncaught mysqli_sql_exception: Access denied for user 'root'@'localhost' (using password: YES) in D:\xampp\htdocs\_0\06_Hotel\Hotel\db.php:2 Stack trace: #0 D:\xampp\htdocs\_0\06_Hotel\Hotel\db.php(2): mysqli_connect('localhost', 'root', 'jannis2020', 'hotel') #1 {main} thrown in D:\xampp\htdocs\_0\06_Hotel\Hotel\db.php on line 2