DockbarX not starting at Ubuntu 11.10

INFO | 2012-03-01 13:07:38,955 | DockbarX 0.48
INFO | 2012-03-01 13:07:38,956 | DockbarX init
ERROR | 2012-03-01 13:07:39,007 | Traceback (most recent call last):
ERROR | 2012-03-01 13:07:39,007 | File "/usr/bin/dockx", line 1171, in <module>
ERROR | 2012-03-01 13:07:39,007 | dockx = DockX(monitor)
ERROR | 2012-03-01 13:07:39,007 | File "/usr/bin/dockx", line 486, in __init__
ERROR | 2012-03-01 13:07:39,008 | self.dockbar.load()
ERROR | 2012-03-01 13:07:39,008 | File "/usr/local/lib/python2.7/dist-packages/dockbarx/dockbar.py", line 202, in load
ERROR | 2012-03-01 13:07:39,008 | from groupbutton import Group, GroupIdentifierError
ERROR | 2012-03-01 13:07:39,008 | File "/usr/local/lib/python2.7/dist-packages/dockbarx/groupbutton.py", line 41, in <module>
ERROR | 2012-03-01 13:07:39,008 | import zg
ERROR | 2012-03-01 13:07:39,008 | File "/usr/local/lib/python2.7/dist-packages/dockbarx/zg.py", line 34, in <module>
ERROR | 2012-03-01 13:07:39,008 | iface = client.ZeitgeistDBusInterface()
ERROR | 2012-03-01 13:07:39,008 | File "/usr/lib/python2.7/dist-packages/zeitgeist/client.py", line 248, in __init__
ERROR | 2012-03-01 13:07:39,009 | self.OBJECT_PATH)
ERROR | 2012-03-01 13:07:39,009 | File "/usr/lib/python2.7/dist-packages/dbus/bus.py", line 244, in get_object
ERROR | 2012-03-01 13:07:39,009 | follow_name_owner_changes=follow_name_owner_changes)
ERROR | 2012-03-01 13:07:39,009 | File "/usr/lib/python2.7/dist-packages/dbus/proxies.py", line 246, in __init__
ERROR | 2012-03-01 13:07:39,009 | self._named_service = conn.activate_name_owner(bus_name)
ERROR | 2012-03-01 13:07:39,009 | File "/usr/lib/python2.7/dist-packages/dbus/bus.py", line 183, in activate_name_owner
ERROR | 2012-03-01 13:07:39,009 | self.start_service_by_name(bus_name)
ERROR | 2012-03-01 13:07:39,009 | File "/usr/lib/python2.7/dist-packages/dbus/bus.py", line 281, in start_service_by_name
ERROR | 2012-03-01 13:07:39,010 | 'su', (bus_name, flags)))
ERROR | 2012-03-01 13:07:39,010 | File "/usr/lib/python2.7/dist-packages/dbus/connection.py", line 630, in call_blocking
ERROR | 2012-03-01 13:07:39,010 | message, timeout)
ERROR | 2012-03-01 13:07:39,010 | dbus.exceptions.DBusException: org.freedesktop.DBus.Error.Spawn.ChildExited: Process /usr/bin/zeitgeist-daemon exited with status 1