pidgin helper didnt work

Binary package hint: docky

My pidgin helper didnt work i have
Docky version: 2.2.0 bzr docky r1808 ppa
Pidgin 2.7.11 (libpurple 2.7.11)
Ubuntu 10.04
Here is a stack trace
[Error 13:43:01.562] [Helper] pidgin_control.py :: Traceback (most recent call last):
[Error 13:43:01.562] [Helper] pidgin_control.py :: File "/usr/lib/pymodules/python2.6/dbus/connection.py", line 576, in msg_reply_handler
[Error 13:43:01.562] [Helper] pidgin_control.py :: reply_handler(*message.get_args_list(**get_args_opts))
[Error 13:43:01.562] [Helper] pidgin_control.py :: File "/usr/share/dockmanager/scripts/pidgin_control.py", line 90, in list_names_handler
[Error 13:43:01.562] [Helper] pidgin_control.py :: self.update_badge()
[Error 13:43:01.563] [Helper] pidgin_control.py :: File "/usr/share/dockmanager/scripts/pidgin_control.py", line 141, in update_badge
[Error 13:43:01.563] [Helper] pidgin_control.py :: count = count + self.pidgin.iface.PurpleConversationGetData(conv, "unseen-count")
[Error 13:43:01.563] [Helper] pidgin_control.py :: File "/usr/lib/pymodules/python2.6/dbus/proxies.py", line 140, in __call__
[Error 13:43:01.563] [Helper] pidgin_control.py :: **keywords)
[Error 13:43:01.563] [Helper] pidgin_control.py :: File "/usr/lib/pymodules/python2.6/dbus/connection.py", line 620, in call_blocking
[Error 13:43:01.563] [Helper] pidgin_control.py :: message, timeout)
[Error 13:43:01.563] [Helper] pidgin_control.py :: dbus.exceptions.DBusException: org.freedesktop.DBus.Error.UnknownMethod: Method "PurpleConversationGetData" with signature "is" on interface "im.pidgin.purple.PurpleInterface" doesn't exist
[Error 13:43:06.787] [Helper] pidgin_control.py :: ERROR:dbus.connection:Exception in handler for D-Bus signal:
[Error 13:43:06.787] [Helper] pidgin_control.py :: Traceback (most recent call last):
[Error 13:43:06.787] [Helper] pidgin_control.py :: File "/usr/lib/pymodules/python2.6/dbus/connection.py", line 214, in maybe_handle_message
[Error 13:43:06.787] [Helper] pidgin_control.py :: self._handler(*args, **kwargs)
[Error 13:43:06.787] [Helper] pidgin_control.py :: File "/usr/share/dockmanager/scripts/pidgin_control.py", line 112, in conversation_updated
[Error 13:43:06.787] [Helper] pidgin_control.py :: self.update_badge()
[Error 13:43:06.788] [Helper] pidgin_control.py :: File "/usr/share/dockmanager/scripts/pidgin_control.py", line 141, in update_badge
[Error 13:43:06.788] [Helper] pidgin_control.py :: count = count + self.pidgin.iface.PurpleConversationGetData(conv, "unseen-count")
[Error 13:43:06.788] [Helper] pidgin_control.py :: File "/usr/lib/pymodules/python2.6/dbus/proxies.py", line 140, in __call__
[Error 13:43:06.788] [Helper] pidgin_control.py :: **keywords)
[Error 13:43:06.788] [Helper] pidgin_control.py :: File "/usr/lib/pymodules/python2.6/dbus/connection.py", line 620, in call_blocking
[Error 13:43:06.788] [Helper] pidgin_control.py :: message, timeout)
[Error 13:43:06.788] [Helper] pidgin_control.py :: DBusException: org.freedesktop.DBus.Error.UnknownMethod: Method "PurpleConversationGetData" with signature "is" on interface "im.pidgin.purple.PurpleInterface" doesn't exist
[Error 13:43:06.809] [Helper] pidgin_control.py :: ERROR:dbus.connection:Exception in handler for D-Bus signal:
[Error 13:43:06.809] [Helper] pidgin_control.py :: Traceback (most recent call last):
[Error 13:43:06.809] [Helper] pidgin_control.py :: File "/usr/lib/pymodules/python2.6/dbus/connection.py", line 214, in maybe_handle_message
[Error 13:43:06.809] [Helper] pidgin_control.py :: self._handler(*args, **kwargs)
[Error 13:43:06.809] [Helper] pidgin_control.py :: File "/usr/share/dockmanager/scripts/pidgin_control.py", line 112, in conversation_updated
[Error 13:43:06.809] [Helper] pidgin_control.py :: self.update_badge()
[Error 13:43:06.809] [Helper] pidgin_control.py :: File "/usr/share/dockmanager/scripts/pidgin_control.py", line 141, in update_badge
[Error 13:43:06.809] [Helper] pidgin_control.py :: count = count + self.pidgin.iface.PurpleConversationGetData(conv, "unseen-count")
[Error 13:43:06.809] [Helper] pidgin_control.py :: File "/usr/lib/pymodules/python2.6/dbus/proxies.py", line 140, in __call__
[Error 13:43:06.809] [Helper] pidgin_control.py :: **keywords)
[Error 13:43:06.809] [Helper] pidgin_control.py :: File "/usr/lib/pymodules/python2.6/dbus/connection.py", line 620, in call_blocking
[Error 13:43:06.809] [Helper] pidgin_control.py :: message, timeout)
[Error 13:43:06.810] [Helper] pidgin_control.py :: DBusException: org.freedesktop.DBus.Error.UnknownMethod: Method "PurpleConversationGetData" with signature "is" on interface "im.pidgin.purple.PurpleInterface" doesn't exist