Feed Help Needed!

Hi everyone, I have a blog (obviously) and I’ve received several e-mails saying my feed isn’t working. I was under the impression it was (because I subscribe to it via Facebook’s Feeds application) but when I went to check it out, I clicked on the link to my feed and there’s nothing. But yesterday there was a whole chunk of errors. I know nothing about feeds past how to subscribe to them using MS Outlook 2007, so needless to say I could really use your help. Thanks so much!