hatom-feed Error: At least one field must be set for HatomFeed.

When using the google Structured Data Testing Tool to test my site I’m receiving the following error:
hatom-feed Error: At least one field must be set for HatomFeed.

This error only appears when testing my home page.
http://www.jrjbroofing.org

If I run the test on other pages such as my about page, contact page etc. I’m receiving no errors. This only appears when testing the home page as I mentioned above.

Here is the link to the error I’m receiving when using the Structured Data Testing Tool.
http://www.google.com/webmasters/tools/richsnippets?q=www.jrjbroofing.org

I should also probably mention that I’m NOT receiving the following errors:
Warning: Missing required field “entry-title”.
Warning: Missing required field “updated”.
Warning: Missing required hCard “author
I have noticed on other post that most people receiving the error I am are also receiving the errors listed above.

Note: I’m using the responsive theme by CyberChimps.

Thanks in advance for any help fixing this error it’s been over a week and I’ve yet to find a solution to this error.