openSUSE zen-updater crashes

Today is the 2nd time I have encountered zen-updater crashes that shows the "Unhandled exception" dialog.
After a little googling, I found the solution here http://en.opensuse.org/Using_zen-updater#Why_zen-updater_crashes
Basically, it says that the zenworks database is corrupted and one way to fix it is to:

1. kill the zmd and zen-updater processes
2. delete the database at /var/lib/zmd/zmd.db
3. restart zenworks and zen-updater.

For more details, please refer to the link above.