Unable to connect to mysql!!!

[Anon]

When i am doing the guestbook page,i know the server support mysql,but it can't able to connect to mysql:

Warning: MySQL Connection Failed: Access denied for user: 'username@localhost' (Using password: YES) in /host/k/i/n/u/n/i/king.united.net.kg/guestbook.php on line 23

unable to connect to mysql

[skripty]

You may need to gain permission. You may have to pay something to be able to use MySQL.