Apt-get update wont run and gives 503 service unavailable error

Linux and Unix-Like Linux
21

I am not sure why am i getting 503 errors when running apt-get and aptitude?

Btw i can do nslookup for the IP adrress provided from my machine.

aptitude install imagemagick
The following NEW packages will be installed:
  imagemagick 
0 packages upgraded, 1 newly installed, 0 to remove and 109 not upgraded.
Need to get 49.0 kB of archives. After unpacking 213 kB will be used.
Err Index of /ubuntu precise-updates/main imagemagick amd64 8:6.6.9.7-5ubuntu3.2
  503  Service Unavailable [IP: 91.189.92.200 80]
Err Index of /ubuntu precise-security/main imagemagick amd64 8:6.6.9.7-5ubuntu3.2
  503  Service Unavailable [IP: 91.189.91.14 80]
0% [Working]E: Failed to fetch http://security.ubuntu.com/ubuntu/pool/main/i/imagemagick/imagemagick_6.6.9.7-5ubuntu3.2_amd64.deb: 503  Service Unavailable [IP: 91.189.91.14 80]