application crashes on startup

On startup, only the menus are accessible (buttons in GUI don't work) and most menu options are not available. Output is as follows. ubuntu-bug should add more details to this report.

09:32:58 lottanzb.core Starting LottaNZB 0.6...
09:32:59 lottanzb.core.log An unhandled exception occurred:
Traceback (most recent call last):
  File "/usr/lib/pymodules/python2.6/lottanzb/core/environ.py", line 84, in run_with_except_hook
    run_old(*args, **kw)
  File "/usr/lib/python2.6/threading.py", line 484, in run
    self.__target(*self.__args, **self.__kwargs)
  File "/usr/lib/pymodules/python2.6/lottanzb/core/component.py", line 351, in load
    component = component_class(self)
  File "/usr/lib/pymodules/python2.6/lottanzb/backend/__init__.py", line 114, in __init__
    raise SessionConnectionError(self.session, error)
SessionConnectionError: Could not start session 'local': Query 'version' to localhost:8080 failed: Connection refused.

Traceback (most recent call last):
  File "/usr/lib/pymodules/python2.6/lottanzb/gui/__init__.py", line 63, in on_component_loading_failure
    self.show_session_selection_dialog(error)
  File "/usr/lib/pymodules/python2.6/lottanzb/gui/__init__.py", line 94, in show_session_selection_dialog
    dialog = self._component_manager.load(sessions.SelectionDialog)
  File "/usr/lib/pymodules/python2.6/lottanzb/core/component.py", line 351, in load
    component = component_class(self)
  File "/usr/lib/pymodules/python2.6/lottanzb/gui/sessions/__init__.py", line 56, in __init__
    MainDelegateComponent.__init__(self, component_manager)
  File "/usr/lib/pymodules/python2.6/lottanzb/gui/framework/__init__.py", line 318, in __init__
    MainDelegate.__init__(self)
  File "/usr/lib/pymodules/python2.6/lottanzb/gui/framework/__init__.py", line 58, in __init__
    self.create_ui()
  File "/usr/lib/pymodules/python2.6/lottanzb/gui/sessions/__init__.py", line 65, in create_ui
    view = self._component_manager.load(view_cls)
  File "/usr/lib/pymodules/python2.6/lottanzb/core/component.py", line 351, in load
    component = component_class(self)
  File "/usr/lib/pymodules/python2.6/lottanzb/gui/sessions/remote.py", line 77, in __init__
    self.refresh_authentication_type()
  File "/usr/lib/pymodules/python2.6/lottanzb/gui/sessions/remote.py", line 123, in refresh_authentication_type
    interface = self._session.get_interface()
  File "/usr/lib/pymodules/python2.6/lottanzb/backend/sessions/base.py", line 54, in get_interface
    interface.handshake()
  File "/usr/lib/pymodules/python2.6/lottanzb/backend/interface/__init__.py", line 190, in handshake
    self.version = self.get_response(query)
  File "/usr/lib/pymodules/python2.6/lottanzb/backend/interface/__init__.py", line 145, in get_response
    raise query.error
lottanzb.backend.interface.errors.QueryConnectionRefusedError: Query 'version' to localhost:8080 failed: Connection refused.

ProblemType: Bug
DistroRelease: Ubuntu 10.10
Package: lottanzb 0.6~bzr1463~1231~201009100005~maverick1
ProcVersionSignature: Ubuntu 2.6.35-20.29-generic 2.6.35.4
Uname: Linux 2.6.35-20-generic i686
NonfreeKernelModules: nvidia
Architecture: i386
CrashDB: lottanzb
Date: Fri Sep 10 09:27:40 2010
InstallationMedia: Kubuntu 10.04 LTS "Lucid Lynx" - Release i386 (20100427)
PackageArchitecture: all
ProcEnviron:
 LANGUAGE=
 LANG=en_US.UTF-8
 SHELL=/bin/bash
RelatedPackageVersions: lottanzb 0.6~bzr1463~1231~201009100005~maverick1
SourcePackage: lottanzb
ThirdParty: True