RSS: XML Parsing Error: xml declaration not at start of external entity

I have an issue with my RSS feeds that stopped working when I installed a new theme on my site. Here are the two feeds with issues:

http://unlimitedfightnews.com/wordpress/?feed=rss

http://unlimitedfightnews.com/wordpress/?feed=rss2

Here’s the code for feed-rss.php

[Moderated: Too much code. Please consider placing the code in a text file on your site with a link here -or- use a pastebin service such as http://wordpress.pastebin.ca. Thanks!]