Error establishing a database connection

MySQL Error 1045:

This either means that the username and password information in your ll-config.php file is incorrect or we can't contact the database server at localhost. This could mean your host's database server is down.

• Are you sure you have the correct username and password?
• Are you sure that you have typed the correct hostname?
• Are you sure that the database server is running?

If you're unsure what these terms mean you should probably contact your host.