RSS Stopped working – Need help

My RSS, RSS2, Atom, etc. feeds have stopped working a few weeks ago.

This had originally been working with no problems for quite awhile. I can not pin point when the problem started, but several users commented several weeks ago that they stopped receiving update feeds from my site.

I can not determine the reason.

I tried adding a plug-in recently to help with the feeds, but this is also not working.

When I look at the code contained in the footer (original source for feeds), it looks consistent with the information from the support site for the correct format.

Any thoughts on what I can do to fix?

Here is the site: https://avianflu.futurehs.com/

I previously had a significant number of people receiving direct feeds from the site and would like to fix if possible.

Thanks