Warning: mysqli_connect(): (28000/1045): Access denied for user 'onlineba_rj87uk'@'localhost' (using password: YES) in /home/onlineba/public_html/mottestcenters/config.php on line 8

Warning: mysqli_error() expects parameter 1 to be mysqli, boolean given in /home/onlineba/public_html/mottestcenters/config.php on line 8
I cannot connect to the database because: