Please Help with RSS Feed issue…

I use wordpress for my podcast, my site is Eviscerated.net. Recently the theme had a problem so I reinstalled it and no I am getting more and more people telling my that my RSS feed wont show them new episodes. I tried it myself on a bunch of iPhone podcast apps and its true it wont work. I went into word-press and then into the power-press section and selected “validate” and it comes back with errors. Feed Validation Report

Here’s what has me ready to pull my hair out, where do I fix the errors. I went through every php file on my FTP and I cant find the one they are looking at on the validator so how can I fix this issue?

I would be very great full if anyone can help me with this, I am way out of my depth on this issue.