software-properties-gtk crashed with Error in setlocale(): unsupported locale setting

[mgaja (GrupoIsep.com)]

update manger >setting

ProblemType: Crash
DistroRelease: Ubuntu 11.04
Package: software-properties-gtk 0.80.5
ProcVersionSignature: Ubuntu 2.6.38-7.39-generic-pae 2.6.38
Uname: Linux 2.6.38-7-generic-pae i686
Architecture: i386
Date: Tue Mar 29 23:42:00 2011
ExecutablePath: /usr/bin/software-properties-gtk
InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Beta 1 i386 (20110329.1)
InterpreterPath: /usr/bin/python2.7
ProcCmdline: /usr/bin/python /usr/bin/software-properties-gtk --open-tab 2 --toplevel 65011715
ProcEnviron:
 PATH=(custom, no user)
 LANGUAGE=C:en
 LANG=es_ES.UTF-8
 SHELL=/bin/bash
PythonArgs: ['/usr/bin/software-properties-gtk', '--open-tab', '2', '--toplevel', '65011715']
SourcePackage: software-properties
Title: software-properties-gtk crashed with Error in setlocale(): unsupported locale setting
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups:

[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 #730643, 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.