wordpress 2.06 rss feed problem

My rss feed does not work properly. I use feedburner and I get a report on my rss feed everyday that says it’s not working properly. It gets cutoff for a few hours before it reconnects. This happens many times a day.

I wouldn’t mind upgrading to fix the problem but I don’t really know how to upgrade (I read the upgrade info on wordpress but I’m not tech savy)

My site is “A Jewish Blog” at https://www.ajewishblog.com