Warning: mysqli_connect(): (HY000/1045): Access denied for user 'mbbsfhmcco_mbbsuser'@'localhost' (using password: YES) in /home/mbbsfhmcco/public_html/config.php on line 16

Warning: mysqli_error() expects exactly 1 parameter, 0 given in /home/mbbsfhmcco/public_html/config.php on line 16
I cannot connect to the database because 1: