RSS FEED issues

I am having trouble with my RSS feed. I do a podcast and have it so that it seperates out my Podcast posts for my feed and it was working fine but then the other day I started to get an error message about my feed and I don’t know a whole lot about RSS feeds so I have no idea what it is, what is causing it, or how to fix it. Here’s what it says on the feed validator:
line 7, column 58: XML parsing error: <unknown>:7:58: not well-formed (invalid token)

xmlns:itunes=”http://www.itunes.com/dtds/podcast-1.0.dtd”xmlns:creativeCommons=”http://backend.userland.com/creativeCommonsRssModule&#8221; xmlns:media=”http://search.yahoo.com/mrss/”&gt;

Anybody know how I can fix it? I admit I am a moron at this so it’ll probably be something easy.