Not valid using kubrick

Hi! I’m not sure why I can’t validate my blog. I’m using the kubrick template with some modifications. When i try to validate through http://validator.w3.org, i get this message:
” Sorry, I am unable to validate this document because on line 307 it contained one or more bytes that I cannot interpret as utf-8 (in other words, the bytes found are not valid values in the specified Character Encoding). Please check both the content of the file and the character encoding indication.”
I’ve checked the source code but still can’t find an answer. Hope you can help me. Saludos!
Tha site is: http://www.adenoia.org/eldummy/