banshee crashes with banshee-extension-liveradio extension enabled

Running banshee with LiveRadio Extension (banshee-extension-liveradio 2.2.0-1ubuntu1) on Xubuntu/XFCE crashes banshee if "live365.com" oder "magnatune.com" plugins are enabled. Tested on two different machines with the following outputs.

Apart from that "shoutcast.com" (Error: Text node cannot apper in this state. Line 1, position 1. ) plugin is not working.

$ banshee
[Info 10:58:16.660] Running Banshee 2.2.0: [Ubuntu oneiric (development branch) (linux-gnu, i686) @ 2011-09-23 04:51:00 UTC]
[Warn 10:58:18.752] Caught an exception - System.ApplicationException: No support GNOME Settings Daemon could be reached. (in `Banshee.MultimediaKeys')
  at Banshee.MultimediaKeys.MultimediaKeysService.Banshee.ServiceStack.IExtensionService.Initialize () [0x00000] in <filename unknown>:0
  at Banshee.ServiceStack.ServiceManager.StartExtension (Mono.Addins.TypeExtensionNode node) [0x00000] in <filename unknown>:0
[Warn 10:58:18.753] Extension `Banshee.MultimediaKeys.MultimediaKeysService' not started: No support GNOME Settings Daemon could be reached.
[Info 10:58:18.759] Updating web proxy from GConf
[Warn 10:58:19.116] Caught an exception - System.ApplicationException: No support GNOME Settings Daemon could be reached. (in `Banshee.MultimediaKeys')
  at Banshee.MultimediaKeys.MultimediaKeysService.Banshee.ServiceStack.IExtensionService.Initialize () [0x00000] in <filename unknown>:0
  at Banshee.ServiceStack.ServiceManager.StartExtension (Mono.Addins.TypeExtensionNode node) [0x00000] in <filename unknown>:0
[Warn 10:58:19.116] Extension `Banshee.MultimediaKeys.MultimediaKeysService' not started: No support GNOME Settings Daemon could be reached.
[Info 10:58:19.119] All services are started 1,902826
[Info 10:58:21.149] nereid Client Started
[Info 10:58:21.473] GStreamer version 0.10.35.0, gapless: True, replaygain: False
[xcb] Unknown sequence number while processing queue
[xcb] Most likely this is a multi-threaded client and XInitThreads has not been called
[xcb] Aborting, sorry about that.
banshee: ../../src/xcb_io.c:273: poll_for_event: Zusicherung »!xcb_xlib_threads_sequence_lost« nicht erfüllt.
Stacktrace:

  at (wrapper managed-to-native) Gtk.Dialog.gtk_dialog_run (intptr) <0xffffffff>
  at Gtk.Dialog.Run () <0x00017>
  at Banshee.Gui.Dialogs.BansheeDialog.Run () <0x00013>
  at Banshee.Gui.GlobalActions.OnPreferences (object,System.EventArgs) <0x00037>
  at (wrapper runtime-invoke) <Module>.runtime_invoke_void__this___object_object (object,intptr,intptr,intptr) <0xffffffff>
  at (wrapper managed-to-native) System.Reflection.MonoMethod.InternalInvoke (System.Reflection.MonoMethod,object,object[],System.Exception&) <0xffffffff>
  at System.Reflection.MonoMethod.Invoke (object,System.Reflection.BindingFlags,System.Reflection.Binder,object[],System.Globalization.CultureInfo) <0x0013f>
  at System.Reflection.MethodBase.Invoke (object,object[]) <0x00022>
  at System.Delegate.DynamicInvokeImpl (object[]) <0x001bf>
  at System.MulticastDelegate.DynamicInvokeImpl (object[]) <0x00033>
  at System.Delegate.DynamicInvoke (object[]) <0x00016>
  at GLib.Signal.ClosureInvokedCB (object,GLib.ClosureInvokedArgs) <0x0012f>
  at GLib.SignalClosure.Invoke (GLib.ClosureInvokedArgs) <0x00023>
  at GLib.SignalClosure.MarshalCallback (intptr,intptr,uint,intptr,intptr,intptr) <0x00233>
  at (wrapper native-to-managed) GLib.SignalClosure.MarshalCallback (intptr,intptr,uint,intptr,intptr,intptr) <0xffffffff>
  at (wrapper managed-to-native) Gtk.Application.gtk_main () <0xffffffff>
  at Gtk.Application.Run () <0x0000b>
  at Banshee.Gui.GtkBaseClient.Run () <0x00063>
  at Banshee.Gui.GtkBaseClient.Startup () <0x0003e>
  at Hyena.Gui.CleanRoomStartup.Startup (Hyena.Gui.CleanRoomStartup/StartupInvocationHandler) <0x00087>
  at Banshee.Gui.GtkBaseClient.Startup<T> () <0x00073>
  at Banshee.Gui.GtkBaseClient.Startup<T> (string[]) <0x000eb>
  at Nereid.Client.Main (string[]) <0x00017>
  at (wrapper runtime-invoke) <Module>.runtime_invoke_void_object (object,intptr,intptr,intptr) <0xffffffff>
  at (wrapper managed-to-native) System.AppDomain.ExecuteAssembly (System.AppDomain,System.Reflection.Assembly,string[]) <0xffffffff>
  at System.AppDomain.ExecuteAssemblyInternal (System.Reflection.Assembly,string[]) <0x0003b>
  at System.AppDomain.ExecuteAssembly (string,System.Security.Policy.Evidence,string[]) <0x00027>
  at (wrapper remoting-invoke-with-check) System.AppDomain.ExecuteAssembly (string,System.Security.Policy.Evidence,string[]) <0xffffffff>
  at System.AppDomain.ExecuteAssembly (string) <0x0001b>
  at (wrapper remoting-invoke-with-check) System.AppDomain.ExecuteAssembly (string) <0xffffffff>
  at Booter.Booter.BootClient (string) <0x0006b>
  at Booter.Booter.Main () <0x001b7>
  at (wrapper runtime-invoke) object.runtime_invoke_void (object,intptr,intptr,intptr) <0xffffffff>

Native stacktrace:

    banshee() [0x80e126c]
    [0xb77e440c]
    [0xb77e4424]
    /lib/i386-linux-gnu/libc.so.6(gsignal+0x4f) [0xb7628c8f]
    /lib/i386-linux-gnu/libc.so.6(abort+0x175) [0xb762c2b5]
    /lib/i386-linux-gnu/libc.so.6(__assert_fail+0xf6) [0xb7621826]
    /usr/lib/i386-linux-gnu/libX11.so.6(+0x37c56) [0xb6175c56]
    /usr/lib/i386-linux-gnu/libX11.so.6(+0x37c7f) [0xb6175c7f]
    /usr/lib/i386-linux-gnu/libX11.so.6(_XEventsQueued+0x6f) [0xb617647f]
    /usr/lib/i386-linux-gnu/libX11.so.6(XPending+0x68) [0xb6166cf8]
    /usr/lib/i386-linux-gnu/libgdk-x11-2.0.so.0(+0x5502c) [0xb671502c]
    /lib/i386-linux-gnu/libglib-2.0.so.0(g_main_context_check+0x284) [0xb63fef24]
    /lib/i386-linux-gnu/libglib-2.0.so.0(+0x438f0) [0xb63ff8f0]
    /lib/i386-linux-gnu/libglib-2.0.so.0(g_main_loop_run+0x14b) [0xb63fff9b]
    /usr/lib/i386-linux-gnu/libgtk-x11-2.0.so.0(gtk_dialog_run+0x1c4) [0xb5aded04]
    [0xa487cb88]
    [0xa487cb40]
    [0xa487cb1c]
    [0xa4ad4c90]
    [0xb505632f]
    banshee() [0x8064afc]

Debug info from gdb:

Could not attach to process. If your uid matches the uid of the target
process, check the setting of /proc/sys/kernel/yama/ptrace_scope, or try
again as the root user. For more details, see /etc/sysctl.d/10-ptrace.conf
ptrace: Die Operation ist nicht erlaubt.
No threads.

=================================================================
Got a SIGABRT while executing native code. This usually indicates
a fatal error in the mono runtime or one of the native libraries
used by your application.
=================================================================

Abgebrochen

#########################################################
$ banshee
[Info 12:00:25.131] Running Banshee 2.2.0: [Ubuntu oneiric (development branch) (linux-gnu, x86_64) @ 2011-09-23 04:47:58 UTC]
Xlib: extension "RANDR" missing on display ":0.0".
[Warn 12:00:25.893] Caught an exception - System.ApplicationException: No support GNOME Settings Daemon could be reached. (in `Banshee.MultimediaKeys')
  at Banshee.MultimediaKeys.MultimediaKeysService.Banshee.ServiceStack.IExtensionService.Initialize () [0x00000] in <filename unknown>:0
  at Banshee.ServiceStack.ServiceManager.StartExtension (Mono.Addins.TypeExtensionNode node) [0x00000] in <filename unknown>:0
[Warn 12:00:25.893] Extension `Banshee.MultimediaKeys.MultimediaKeysService' not started: No support GNOME Settings Daemon could be reached.
[Info 12:00:25.897] Updating web proxy from GConf
[Warn 12:00:25.996] Caught an exception - System.ApplicationException: No support GNOME Settings Daemon could be reached. (in `Banshee.MultimediaKeys')
  at Banshee.MultimediaKeys.MultimediaKeysService.Banshee.ServiceStack.IExtensionService.Initialize () [0x00000] in <filename unknown>:0
  at Banshee.ServiceStack.ServiceManager.StartExtension (Mono.Addins.TypeExtensionNode node) [0x00000] in <filename unknown>:0
[Warn 12:00:25.996] Extension `Banshee.MultimediaKeys.MultimediaKeysService' not started: No support GNOME Settings Daemon could be reached.
[Info 12:00:25.997] All services are started 0,687192
[Info 12:00:26.235] AmazonMP3 store redirect URL: https://one.ubuntu.com/music/store/amz/
** (Banshee:3344): DEBUG: SyncDaemon already running, initializing SyncdaemonDaemon object

(Banshee:3344): libsoup-WARNING **: No feature manager for feature of type 'U1RequestChrome'
[Info 12:00:26.825] nereid Client Started
[Info 12:00:26.888] GStreamer version 0.10.35.0, gapless: True, replaygain: False
[Info 12:00:26.915] AppleDeviceSource is ignoring unmounted volume 120 GB-Dateisystem

** (Banshee:3344): WARNING **: Error calling get_info: Traceback (most recent call last):
  File "/usr/lib/python2.7/dist-packages/dbus/service.py", line 702, in _message_cb
    retval = candidate_method(self, *args, **keywords)
  File "/usr/lib/python2.7/dist-packages/ubuntuone-client/ubuntuone/platform/linux/dbus_interface.py", line 1041, in get_info
    return self.syncdaemon_folders.get_info(path)
  File "/usr/lib/python2.7/dist-packages/ubuntuone-client/ubuntuone/syncdaemon/interaction_interfaces.py", line 640, in get_info
    mdobj = self.fs.get_by_path(path.encode('utf-8'))
  File "/usr/lib/python2.7/dist-packages/ubuntuone-client/ubuntuone/syncdaemon/filesystem_manager.py", line 781, in get_by_path
    mdid = self._idx_path[path]
KeyError: '/home/user/.ubuntuone/Purchased from Ubuntu One'

** (Banshee:3344): CRITICAL **: syncdaemon_folder_info_get_subscribed: assertion `SYNCDAEMON_IS_FOLDER_INFO (finfo)' failed
** (Banshee:3344): DEBUG: Loading the real store page

** (Banshee:3344): WARNING **: Error rescanning Purchased Music: Datei oder Verzeichnis nicht gefunden
The program 'Banshee' received an X Window System error.
This probably reflects a bug in the program.
The error was 'RenderBadPicture (invalid Picture parameter)'.
  (Details: serial 10361 error_code 175 request_code 153 minor_code 8)
  (Note to programmers: normally, X errors are reported asynchronously;
   that is, you will receive the error a while after causing it.
   To debug your program, run it with the --sync command line
   option to change this behavior. You can then get a meaningful
   backtrace from your debugger if you break on the gdk_x_error() function.)
The program 'Banshee' received an X Window System error.
This probably reflects a bug in the program.
The error was 'RenderBadPicture (invalid Picture parameter)'.
  (Details: serial 10356 error_code 175 request_code 153 minor_code 26)
  (Note to programmers: normally, X errors are reported asynchronously;
   that is, you will receive the error a while after causing it.
   To debug your program, run it with the --sync command line
   option to change this behavior. You can then get a meaningful
   backtrace from your debugger if you break on the gdk_x_error() function.)

ProblemType: Bug
DistroRelease: Ubuntu 11.10
Package: banshee-extension-liveradio 2.2.0-1ubuntu1
ProcVersionSignature: Ubuntu 3.0.0-12.20-generic 3.0.4
Uname: Linux 3.0.0-12-generic x86_64
NonfreeKernelModules: nvidia
ApportVersion: 1.23-0ubuntu3
Architecture: amd64
Date: Wed Oct 26 12:06:09 2011
InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Release amd64 (20111012)
PackageArchitecture: all
ProcEnviron:
 PATH=(custom, no user)
 LANG=de_DE.UTF-8
 SHELL=/bin/bash
SourcePackage: banshee-community-extensions
UpgradeStatus: No upgrade log present (probably fresh install)