ubuntu store crash reinstalling doest work!

ubuntu store crash reinstalling doest work!

hey my ubuntu software centre keeps crashing as of version 12,04 i updated
13.04 but still keep crashing this is my terminal log:
software-center
2013-08-16 16:39:15,167 - softwarecenter.ui.gtk3.app - INFO - setting up
proxy 'None'
2013-08-16 16:39:18,080 - softwarecenter.backend.reviews - WARNING - Could
not get usefulness from server, no username in config file
2013-08-16 16:39:18,118 - softwarecenter.plugin - INFO - activating plugin
'<module 'webapps_activation' from
'/usr/share/software-center/softwarecenter/plugins/webapps_activation.pyc'>'
2013-08-16 16:39:18,155 - softwarecenter.fixme - WARNING - logs to the
root logger: '('/usr/lib/python2.7/dist-packages/gi/importer.py', 51,
'find_module')'
2013-08-16 16:39:18,155 - root - ERROR - Could not find any typelib for
LaunchpadIntegration
2013-08-16 16:39:18,399 - softwarecenter.db.pkginfo_impl.aptcache - INFO -
aptcache.open().
Reinstalling doesn't work! I am also getting grey screen.