gufw.py crashed with TypeError in _set_rules_list(): value is of the wrong type for this column

[GNAServicesInc]

I tried to open it...

ProblemType: Crash
DistroRelease: Ubuntu 11.04
Package: gufw 11.04.1-0ubuntu1
Uname: Linux 2.6.38-rc3-feb-seventwo-c-gna-next-20110207+ x86_64
Architecture: amd64
Date: Mon Feb 7 16:16:26 2011
ExecutablePath: /usr/share/gufw/gufw.py
InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Alpha amd64 (20110121)
InterpreterPath: /usr/bin/python2.7
PackageArchitecture: all
ProcCmdline: python /usr/share/gufw/gufw.py
ProcEnviron:
 SHELL=/bin/bash
 PATH=(custom, user)
 LANG=en_US.UTF-8
PythonArgs: ['/usr/share/gufw/gufw.py']
SourcePackage: gui-ufw
Title: gufw.py crashed with TypeError in _set_rules_list(): value is of the wrong type for this column
UserGroups: adm admin cdrom dialout lpadmin netdev nopasswdlogin plugdev sambashare