Email Subscribers Not Receiving Updates

[Jeanie Witmer]

Subscribers are no longer receiving updates to new blog posts since March.  I've tried to figure this out myself but can't. The feed validator shows the feed is valid but with errors.  I don't copy and paste from MSWord, so I'm confused with what's wrong.  Also, the ping test does not work either.  Can someone please help me?  www.thespottedchick.blogspot.com