Application that crashed: okular
Version of the application: 0.8.80
KDE Version: 4.2.87 (KDE 4.2.87 (KDE 4.3 >= 20090519))
Qt Version: 4.5.1
Operating System: Linux 2.6.29-hh3 x86_64

What I was doing when the application crashed:
When finish looking into pdf document, and close the okular, it crashes.
The error occur every time.

 -- Backtrace:
Application: Okular (okular), signal: Aborted
[KCrash Handler]
#5  0x00007f49def31225 in raise () from /lib/libc.so.6
#6  0x00007f49def32743 in abort () from /lib/libc.so.6
#7  0x00007f49e00c3a55 in qt_message_output (msgType=QtFatalMsg, buf=<value optimized out>) at global/qglobal.cpp:2017
#8  0x00007f49e00c3b70 in qFatal (msg=<value optimized out>) at global/qglobal.cpp:2216
#9  0x00007f49e0854baf in KCatalog::operator= (this=0x1ba5ff0, rhs=<value optimized out>) at /var/tmp/portage/kde-base/kdelibs-4.2.87/work/kdelibs-4.2.87/kdecore/localization/kcatalog.cpp:69
#10 0x00007f49e086250f in KLocalePrivate::updateCatalogs (this=0x1a9fab0) at /usr/include/qt4/QtCore/qlist.h:340
#11 0x00007f49e0862e5d in KLocale::removeCatalog (this=0x1a9fa90, catalog=<value optimized out>) at /var/tmp/portage/kde-base/kdelibs-4.2.87/work/kdelibs-4.2.87/kdecore/localization/klocale.cpp:736
#12 0x00007f49e07e855d in ~KComponentDataPrivate (this=0x1a5ef90) at /var/tmp/portage/kde-base/kdelibs-4.2.87/work/kdelibs-4.2.87/kdecore/kernel/kcomponentdata_p.h:50
#13 0x00007f49e07e81e8 in ~KComponentData (this=0x1a5e680) at /var/tmp/portage/kde-base/kdelibs-4.2.87/work/kdelibs-4.2.87/kdecore/kernel/kcomponentdata_p.h:70
#14 0x00007f49e076d107 in ~KConfigPrivate (this=0x1a5e620) at /var/tmp/portage/kde-base/kdelibs-4.2.87/work/kdelibs-4.2.87/kdecore/config/kconfig_p.h:73
#15 0x00007f49e0767673 in ~KConfig (this=0x1a5d2f0) at /var/tmp/portage/kde-base/kdelibs-4.2.87/work/kdelibs-4.2.87/kdecore/config/kconfig.cpp:195
#16 0x00007f49e07807d5 in ~KSharedConfig (this=0x1a5d2f0) at /var/tmp/portage/kde-base/kdelibs-4.2.87/work/kdelibs-4.2.87/kdecore/config/ksharedconfig.cpp:74
#17 0x00007f49e0787553 in ~KCoreConfigSkeleton (this=0x1a5d330) at /var/tmp/portage/kde-base/kdelibs-4.2.87/work/kdelibs-4.2.87/kdecore/util/ksharedptr.h:90
#18 0x00007f49d8d579ff in ~OxygenStyleConfigData (this=0x1a5d330) at /usr/kde/4.3/include/kconfigskeleton.h:41
#19 0x00007f49d8d55fcd in destroy () at /var/tmp/portage/kde-base/kstyles-4.2.87/work/kstyles-4.2.87_build/kstyles/oxygen/oxygenstyleconfigdata.cpp:13
#20 0x00007f49def33dcd in exit () from /lib/libc.so.6
#21 0x00007f49def1d48d in __libc_start_main () from /lib/libc.so.6
#22 0x0000000000407b59 in _start ()