[ Solved ] Unable to update pakages with apt-get upgrade command

[one23]

Here's what I get when trying to install some packages

Reading package lists... Done
Building dependency tree       
Reading state information... Done
Correcting dependencies... Done
The following packages were automatically installed and are no longer required:
  libspeechd2 syslinux-themes-debian syslinux-themes-debian-wheezy
Use 'apt-get autoremove' to remove them.
The following extra packages will be installed:
  libavcodec56 libavformat56 libavutil54 libgnutls-deb0-28 libgnutls-openssl27
  libswresample1
Suggested packages:
  gnutls-bin
The following NEW packages will be installed:
  libavcodec56 libavformat56 libavutil54 libswresample1
The following packages will be upgraded:
  libgnutls-deb0-28 libgnutls-openssl27
2 upgraded, 4 newly installed, 0 to remove and 973 not upgraded.
24 not fully installed or removed.
Need to get 838 kB/9,556 kB of archives.
After this operation, 25.3 MB of additional disk space will be used.
Do you want to continue? [Y/n] y
WARNING: The following packages cannot be authenticated!
  libgnutls-openssl27 libgnutls-deb0-28
Install these packages without verification? [y/N] y
Err http://ftp.debian.org/debian/ testing/main libgnutls-openssl27 i386 3.3.7-2
  404  Not Found [IP: 130.89.148.12 80]
Err http://ftp.debian.org/debian/ testing/main libgnutls-deb0-28 i386 3.3.7-2
  404  Not Found [IP: 130.89.148.12 80]
E: Failed to fetch http://ftp.debian.org/debian/pool/main/g/gnutls28/libgnutls-openssl27_3.3.7-2_i386.deb  404  Not Found [IP: 130.89.148.12 80]

E: Failed to fetch http://ftp.debian.org/debian/pool/main/g/gnutls28/libgnutls-deb0-28_3.3.7-2_i386.deb  404  Not Found [IP: 130.89.148.12 80]

E: Unable to fetch some archives, maybe run apt-get update or try with --fix-missing?


Broken repos? How to fix it?

And I don't like this line 'WARNING: The following packages cannot be authenticated!
  libgnutls-openssl27 libgnutls-deb0-28'

Update:
I forgot to use apt-get update before issuing install command. Problem solved now