hamster-time-tracker crashed with TypeError in _open_edit_activity(): 'NoneType' object is not subscriptable

[bananenkasper]

just crashed.

ProblemType: Crash
DistroRelease: Ubuntu 11.10
Package: hamster-applet 2.32.1-0ubuntu5
ProcVersionSignature: Ubuntu 3.0.0-17.30-generic 3.0.22
Uname: Linux 3.0.0-17-generic x86_64
NonfreeKernelModules: nvidia
ApportVersion: 1.23-0ubuntu4
Architecture: amd64
Date: Fri Mar 30 14:05:47 2012
ExecutablePath: /usr/bin/hamster-time-tracker
InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Release amd64 (20111012)
InterpreterPath: /usr/bin/python2.7
ProcCmdline: python /usr/bin/hamster-time-tracker
PythonArgs: ['/usr/bin/hamster-time-tracker']
SourcePackage: hamster-applet
Title: hamster-time-tracker crashed with TypeError in _open_edit_activity(): 'NoneType' object is not subscriptable
Traceback:
 Traceback (most recent call last):
   File "/usr/bin/hamster-time-tracker", line 254, in _open_edit_activity
     dialogs.edit.show(self.window, fact_id = fact["id"])
 TypeError: 'NoneType' object is not subscriptable
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm admin cdrom dialout lpadmin plugdev sambashare