Problem with comments

Whenever I or anyone else tries to comment on my site kittysafe.net I get this error:

The connection was reset

The connection to the server was reset while the page was loading.

* The site could be temporarily unavailable or too busy. Try again in a few
moments.

* If you are unable to load any pages, check your computer’s network
connection.

* If your computer or network is protected by a firewall or proxy, make sure
that Firefox is permitted to access the Web.

Feel free to try it out, cos I can’t figure it out.