(resolved) i keep getting these errors after a restart

hi everyone i just noticed this error in the mail app.

CRON-APT RUN [/etc/cron-apt/config]: Sun Aug 26 04:00:01 EDT 2012 CRON-APT SLEEP: 577, Sun Aug 26 04:09:38 EDT 2012 CRON-APT ACTION: 0-update CRON-APT LINE: /usr/bin/apt-get update -o quiet=2
W: Failed to fetch http://ftp.de.debian.org/dists…ze/main/source/Sources.gz 404 Not Found

W: Failed to fetch http://ftp.de.debian.org/dists…contrib/source/Sources.gz 404 Not Found

W: Failed to fetch http://ftp.de.debian.org/dists…on-free/source/Sources.gz 404 Not Found

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

I edited

/etc/apt/sources.list

then changed

deb-src http://ftp.de.debian.org/ squeeze main contrib non-free

to

deb-src http://ftp.us.debian.org/debian/ squeeze main contrib non-free

no more errors.

If this could cause problems please let me know so i can update the post.