Problems with Feed

Hello whosoever,
I am having trouble getting the feed to work on http://losdoggies.com.
I could’ve sworn it was working fine a day ago, and don’t believe I changed anything, but I notice that the RSS feed in the right hand column is also corrupted. I am not very knowledgeable of RSS and how it works, but should not http://losdoggies.com/feed simply work on its own?

Thank you, you who can help me!

-evan