emacs crashed

[m]

I have no idea why. I was using shell and suddenly it all disappeared.

ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: emacs 45.0ubuntu1
ProcVersionSignature: Ubuntu 4.2.0-35.40~14.04.1-generic 4.2.8-ckt5
Uname: Linux 4.2.0-35-generic i686
ApportVersion: 2.14.1-0ubuntu3.23
Architecture: i386
CurrentDesktop: Unity
Date: Thu Feb 2 21:45:33 2017
Dependencies: emacs24 24.5-1 [modified: usr/local/var/games/emacs/tetris-scores] [origin: unknown]
InstallationDate: Installed on 2010-08-28 (2350 days ago)
InstallationMedia: Ubuntu-Netbook 10.04 "Lucid Lynx" - Release i386 (20100429.4)
PackageArchitecture: all
SourcePackage: emacs-defaults
UpgradeStatus: Upgraded to trusty on 2014-12-05 (791 days ago)