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

[laucho]

crash

ProblemType: Crash
DistroRelease: Ubuntu 11.04
Package: gufw 11.04.1-0ubuntu1
ProcVersionSignature: Ubuntu 2.6.38-3.30-generic 2.6.38-rc4
Uname: Linux 2.6.38-3-generic x86_64
Architecture: amd64
Date: Thu Feb 17 09:19:24 2011
ExecutablePath: /usr/share/gufw/gufw.py
InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Alpha amd64 (20110202)
InterpreterPath: /usr/bin/python2.7
PackageArchitecture: all
ProcCmdline: python /usr/share/gufw/gufw.py
ProcEnviron:
 SHELL=/bin/bash
 LC_MESSAGES=en_US.utf8
 LANG=en_US.UTF-8
 LANGUAGE=en_US:en
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 plugdev sambashare vboxusers

[Apport retracing service (apport)]

Thank you for taking the time to report this crash and helping to make Ubuntu better. This particular crash has already been reported and is a duplicate of bug #709101, so is being marked as such. Please look at the other bug report to see if there is any missing information that you can provide, or to see if there is a workaround for the bug. Additionally, any further discussion regarding the bug should occur in the other report. Please continue to report any other bugs you may find.