Traceback (most recent call last):
  File "/usr/lib/python2.7/dist-packages/dbus/connection.py", line 586, in msg_reply_handler
    reply_handler(*message.get_args_list(**get_args_opts))
  File "/usr/lib/python2.7/dist-packages/zeitgeist/client.py", line 717, in <lambda>
    map(self._event_type.new_for_struct, raw)),
  File "/usr/share/software-center/softwarecenter/backend/zeitgeist_simple.py", line 92, in _callback
    callback(results[:num])
  File "/usr/share/software-center/softwarecenter/ui/gtk/catview_gtk.py", line 367, in _popular_mimetypes_callback
    r_apps =_find_applications(mimetypes)
  File "/usr/share/software-center/softwarecenter/ui/gtk/catview_gtk.py", line 352, in _find_applications
    result = self.db.get_most_popular_applications_for_mimetype(mimetype)
  File "/usr/share/software-center/softwarecenter/db/database.py", line 319, in get_most_popular_applications_for_mimetype
    matches = enquire.get_mset(0, 100)
DocNotFoundError: Document 563 not found