unity-panel-service crashed with signal 5 in g_type_create_instance()

 i have just upgraded from 13.04 to 13.10 and since then i was unasble to login using my account or guess account. Even for using ctrl + alt + f1, i had to boot into repair mod and then select the resume option.

ProblemType: Crash
DistroRelease: Ubuntu 13.10
Package: indicator-appmenu 13.01.0daily13.06.07-0ubuntu1
ProcVersionSignature: Ubuntu 3.10.0-2.11-generic 3.10.0
Uname: Linux 3.10.0-2-generic x86_64
ApportVersion: 2.10.2-0ubuntu4
Architecture: amd64
Date: Sat Jul 13 08:10:28 2013
EcryptfsInUse: Yes
ExecutablePath: /usr/lib/unity/unity-panel-service
InstallationDate: Installed on 2013-07-02 (10 days ago)
InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Release amd64 (20111012)
MarkForUpload: True
ProcCmdline: /usr/lib/unity/unity-panel-service
ProcEnviron:
 PATH=(custom, no user)
 LANGUAGE=en_US
 XDG_RUNTIME_DIR=<set>
 LANG=en_US.UTF-8
 SHELL=/bin/bash
Signal: 5
SourcePackage: indicator-appmenu
StacktraceTop:
 ?? () from /usr/lib/x86_64-linux-gnu/libbamf3.so.1
 g_type_create_instance () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
 ?? () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
 g_object_newv () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
 g_object_new () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
Title: unity-panel-service crashed with signal 5 in g_type_create_instance()
UpgradeStatus: Upgraded to saucy on 2013-07-13 (0 days ago)
UserGroups: adm admin cdrom dialout lpadmin plugdev sambashare