kazam crashed with AttributeError in cb_quit_request(): 'KazamApp' object has no attribute 'keypress_viewer'

[andax]

crashed on closing app

ProblemType: Crash
DistroRelease: Ubuntu 14.04
Package: kazam 1.5.3-0ubuntu1 [origin: LP-PPA-kazam-team-unstable-series]
ProcVersionSignature: Ubuntu 3.13.0-34.60-generic 3.13.11.4
Uname: Linux 3.13.0-34-generic x86_64
NonfreeKernelModules: fglrx
ApportVersion: 2.14.1-0ubuntu3.3
Architecture: amd64
CrashDB: {"impl": "launchpad", "project": "kazam"}
CurrentDesktop: Unity
Date: Sat Aug 16 22:33:04 2014
ExecutablePath: /usr/bin/kazam
InstallationDate: Installed on 2014-07-30 (17 days ago)
InstallationMedia:

InterpreterPath: /usr/bin/python3.4
PackageArchitecture: all
ProcCmdline: /usr/bin/python3 /usr/bin/kazam
ProcEnviron:
 LANGUAGE=hr
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=hr_HR.UTF-8
 SHELL=/bin/bash
PythonArgs: ['/usr/bin/kazam']
SourcePackage: kazam
Title: kazam crashed with AttributeError in cb_quit_request(): 'KazamApp' object has no attribute 'keypress_viewer'
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo

[marxubuntu (marxubuntu)]

Ubuntu 16.04 Kazam Crash after configuring settings for Screencast, Snapshot, WebCam for save to Desktop File(s)

[Martin Wildam (mwildam)]

Got this now on 16.04. Since then when I quit Kazam from tray menu I can normally start it. Once started and in tray, trying to start through launcher a second time I get an empty window. So the original main window cannot be restored any more.
This error occured at the same time when error described in Bug #1357789 occured.

[Alexander Petcoglo (rckt)]

Ubuntu 18.04. Crashes upon quitting the app.