To fix the error in /etc/apt/sources.list, change your file to match the reference below, substituting the mirror in the example with the one closest to you:
Code:
# Stable
deb ftp://ftp.se.debian.org/debian-non-US/ stable/non-US main contrib non-free
deb-src ftp://ftp.se.debian.org/debian-non-US/ stable/non-US main contrib non-free
deb ftp://ftp.se.debian.org/ stable main non-free contrib
deb-src ftp://ftp.se.debian.org/debian/ stable main non-free contrib
deb ftp://ftp.se.debian.org/ stable/updates main contrib non-free