I was mentioning the remote godaddy mysql server because the error was happening on the Connections file, this file creates a connection to the MySQL server.
in actual fact, if that file has been uploaded to the server at another time, then the error can be ignored, it should really only ever be uploaded to the server once. Since you mention using a database in your site before, I would think the connection file is already uploaded.
What happens if you test the testmailer.php file in the browser.