Traceback (most recent call last):
  File "/usr/share/software-center/softwarecenter/utils.py", line 85, in <lambda>
    glib.timeout_add(500, lambda: wrapper(*args, **kwargs))
  File "/usr/share/software-center/softwarecenter/utils.py", line 90, in wrapper
    f(*args, **kwargs)
  File "/usr/share/software-center/softwarecenter/models/viewswitcherlist.py", line 167, in _update_channel_list
    self._update_channel_list_installed_view()
  File "/usr/share/software-center/softwarecenter/models/viewswitcherlist.py", line 207, in _update_channel_list_installed_view
    for channel in self.channel_manager.channels_installed_only:
  File "/usr/share/software-center/softwarecenter/backend/channel.py", line 75, in channels_installed_only
    return self._get_channels(installed_only=True)
  File "/usr/share/software-center/softwarecenter/backend/channel.py", line 199, in _get_channels
    doc = self.db.xapiandb.get_document(m.get_docid())
DocNotFoundError: Document 5831 not found.