I Caot log in my Ubuntu 14.04 inittramfs-tools problem

Hello, I had a problem with the apt-get update, I got an error with the package:initramfs-tools

I found one solution deleting this package with "apt-get remove inittramfs-tools" and then reinstalling it. I'm new with this OS and I didn´t know what involves deleting this package,
so when I was removing it everything stop working. I reboot the computer and now I can see grub but I caot log in to my user. Please can someone tell me a
solution to reinstall this package?.
Thanking you in advance.