apt-get update returns error

[feign]

This error below started appearing when i run apt-get update on my xbian. I'm not really sure why and searching for the problem returned nothing useful. Can anybody point me to the right direction? Thank you.

I've pasted apt sources below.

W: Failed to fetch http://mirrordirector.raspbian.org/raspbian/dists/wheezy/Release Unable to find expected entry 'main/binary-i386/Packages' in Release file (Wrong sources.list entry or malformed file)
W: Failed to fetch mirror://apt.xbian.org/mirror.txt/dists/stable/Release Unable to find expected entry 'main/binary-i386/Packages' in Release file (Wrong sources.list entry or malformed file)

E: Some index files failed to download. They have been ignored, or old ones used instead.

Terminal

root@xbian /etc/apt # uname -a
Linux xbian.private 3.17.7-ck2+ #3 PREEMPT Sat Jan 17 15:08:48 CET 2015 armv6l GNU/Linux
root@xbian /etc/apt # cat /etc/xbian_version
20141231-2
root@xbian /etc/apt # cat sources.list
deb http://mirrordirector.raspbian.org/raspbian/ wheezy main contrib non-free rpi
root@xbian /etc/apt # cat sources.list.d/xbian.list
deb mirror://apt.xbian.org/mirror.txt stable main rpi-wheezy