system testing failed to upload to server

Binary package hint: checkbox

Ubuntu 10.04 beta1 LTS
Failed to process form: 'field.submission_data' is not a valid key as per {'field.architecture': <functools.partial object at 0x9d1802c>, 'field.distribution': <functools.partial object at 0x9d187ac>, 'field.system': <functools.partial object at 0x9d187d4>, 'field.actions.upload': <functools.partial object at 0x9d187fc>, 'field.private': <functools.partial object at 0x9d18824>, 'field.format': <functools.partial object at 0x9d1884c>, 'field.contactable': <functools.partial object at 0x9d18874>, 'field.date_created': <functools.partial object at 0x9d1889c>, 'field.emailaddress': <functools.partial object at 0x9d188c4>, 'field.submission_key': <functools.partial object at 0x9d188ec>, 'field.distroseries': <functools.partial object at 0x9d18914>, 'field.live_cd': <functools.partial object at 0x9d1893c>}

ProblemType: Crash
Architecture: i386
Date: Tue Mar 23 10:31:57 2010
DistroRelease: Ubuntu 10.04
ExecutablePath: /usr/share/checkbox/backend
InstallationMedia: Ubuntu 9.10 "Karmic Koala" - Release i386 (20091028.5)
InterpreterPath: /usr/bin/python2.6
Package: checkbox 0.9
PackageArchitecture: all
ProcCmdline: /usr/bin/python /usr/share/checkbox/backend /tmp/checkboxNG4r6B/input /tmp/checkboxNG4r6B/output
ProcEnviron:
 SHELL=/bin/bash
 PATH=(custom, no user)
 LANG=de_CH.utf8
ProcVersionSignature: Ubuntu 2.6.32-16.25-generic
PythonArgs: ['/usr/share/checkbox/backend', '/tmp/checkboxNG4r6B/input', '/tmp/checkboxNG4r6B/output']
SourcePackage: checkbox
Title: backend crashed with ValueError in loads()
Uname: Linux 2.6.32-16-generic i686
UserGroups: