Kmail reply problem

Hi,
yesterday I installed Netrunner 17. Kontact finally is working again. But I cannot reply to an email. If I try to reply Kontact stops working and disappears immediately. How can I solve that problem or is it a bug?
Kind regards,
Sigurd

If you start from kmail from terminal do you see any error or crash message ?

Hello leszek,
I started Kmail from terminal and I got the error message “The Akonadi personal management service is not operational”. I was wondering because it runs fine using the icon to start Kmail via Kontact. What do you suggest for fixing the problem?
When I reboot and start Kontact for the first time of the session I’m getting the attached message.
Kind regards,
Sigurd