site upload into web hosting

thanks a lot the it is useful. however, I cannot login to my CPANEL.
as http://www.ilovekenya.it/wp-admin/post.php

Error:
1. Error establishing a database connection.
although I changed the databasename,user and username in wp-config file.

or it redirect me to this link:
2.http://localhost/ilk_wordpress/wp-login.php?redirect_to=http%3A%2F%2Fwww.ilovekenya.it%2Fwp-admin%2Fpost.php&reauth=1

what would be the problem? thanks