serious problems with my feed and need help

before I starting using wordpress, I had a feed which I updated manually – an xml document that I used FEEDFORALL to update. I have since transferred my site over to wordpress, but the feed I have burned from Feedburner is not registering new content…I have no idea how to resolve this issue. the theme that I am working with offers a feedburner option to direct all updates to feedburner, but it’s not working. I have about 60+ subscribers, and I don’t want to lose them because the content is not being updated…I’m a little concerned…

any help would be very greatly appreciated.

here’s the link to my site: https://www.siiimple.com/

I can post any kind of code that you need, but don’t know where to start with this problem…

I have had to place the XML document in the root of the site and update it manually until I can get this resolved. it’s a little frustrating since this was one of the reason I transferred the site in the first place.

Thanks again for any help!