ubuntu-app-launch fails to install trying to access cache folder of another user

I'm experiencing problems updating my system. The exact issue can be narrowed down to the ubuntu-app-launch package failing to configure because it tries to access the cache folder of another user.

> whoami
rumo
> sudo dpkg --configure ubuntu-app-launch
ubuntu-app-launch (0.4+15.04.20150410-0ubuntu1) wird eingerichtet ...
Traceback (most recent call last):
  File "/usr/bin/click", line 86, in <module>
    sys.exit(main())
  File "/usr/bin/click", line 82, in main
    return mod.run(args)
  File "/usr/lib/python3/dist-packages/click/commands/hook.py", line 63, in run
    getattr(hook, per_hook_subcommands[subcommand])(user_name=None)
GLib.Error: g-file-error-quark: ensuredir /home/kalikiana/.cache/ubuntu-app-launch/desktop failed: Permission denied (2)
dpkg: Fehler beim Bearbeiten des Paketes ubuntu-app-launch (--configure):
 Unterprozess installiertes post-installation-Skript gab den Fehlerwert 1 zurück
Fehler traten auf beim Bearbeiten von:
 ubuntu-app-launch

ProblemType: Bug
DistroRelease: Ubuntu 15.04
Package: ubuntu-app-launch 0.4+15.04.20150410-0ubuntu1
ProcVersionSignature: Ubuntu 3.19.0-15.15-generic 3.19.3
Uname: Linux 3.19.0-15-generic x86_64
ApportVersion: 2.17.2-0ubuntu1
Architecture: amd64
CurrentDesktop: Unity
Date: Tue May 5 20:38:20 2015
EcryptfsInUse: Yes
InstallationDate: Installed on 2013-07-03 (671 days ago)
InstallationMedia: Ubuntu 13.04 "Raring Ringtail" - Release amd64 (20130424)
JournalErrors: Error: command ['journalctl', '-b', '--priority', 'warning'] failed with exit code 1: No journal files were found.
SourcePackage: ubuntu-app-launch
SystemImageInfo:
 current build number: 0
 device name:
 channel: daily
 last update: Unknown
UpgradeStatus: Upgraded to vivid on 2014-11-21 (165 days ago)