ubuntuone-syncdaemon crashed with DBusException in __new__(): org.freedesktop.DBus.Error.NoServer: Failed to connect to socket /tmp/dbus-9TNvJBR49b: Verbindungsaufbau abgelehnt

Binary package hint: ubuntuone-client

I don't know what happened, so I can't write any further information

ProblemType: Crash
DistroRelease: Ubuntu 11.04
Package: ubuntuone-client 1.5.3-0ubuntu3
ProcVersionSignature: Ubuntu 2.6.38-2.29-generic 2.6.38-rc3
Uname: Linux 2.6.38-2-generic i686
Architecture: i386
Date: Thu Feb 10 17:53:45 2011
EcryptfsInUse: Yes
ExecutablePath: /usr/lib/ubuntuone-client/ubuntuone-syncdaemon
InstallationMedia: Ubuntu 10.10 "Maverick Meerkat" - Release i386 (20101007)
InterpreterPath: /usr/bin/python2.7
PackageArchitecture: all
ProcCmdline: /usr/bin/python /usr/lib/ubuntuone-client/ubuntuone-syncdaemon
ProcEnviron:
 SHELL=/bin/bash
 LC_MESSAGES=de_DE.utf8
 LANGUAGE=de_DE:de:en_GB:en
 LANG=de_DE.UTF-8
PythonArgs: ['/usr/lib/ubuntuone-client/ubuntuone-syncdaemon']
SourcePackage: ubuntuone-client
Title: ubuntuone-syncdaemon crashed with DBusException in __new__(): org.freedesktop.DBus.Error.NoServer: Failed to connect to socket /tmp/dbus-9TNvJBR49b: Verbindungsaufbau abgelehnt
UbuntuOnePreferencesLog:
 2010-10-30 19:02:51,707 - ubuntuone-preferences - INFO - Starting Ubuntu One Preferences
 2010-10-30 19:02:55,026 - ubuntuone-preferences - ERROR - Authorization was denied for Ubuntu One
UbuntuOneSyncdaemonExceptionsLog:
 2011-02-10 17:56:14,141 - twisted - ERROR - Unhandled error in Deferred:
 2011-02-10 17:56:14,142 - twisted - ERROR - Unhandled Error
 Traceback (most recent call last):
 Failure: ubuntuone.platform.linux.dbus_interface.NoAccessToken: CredentialsNotFound
UbuntuOneUserSyncdaemonConfig:
 [bandwidth_throttling]
 on = False
 read_limit = 2097152
 write_limit = 2097152
UserGroups: adm admin cdrom dialout lpadmin plugdev sambashare