While using Kontakt I get the regularly the error: "Akonadi Personal information management is not running. This application can not be used without it." With a start button under the text. It disappears within seconds, but it seems that I loose contact with my Owncloud/Blaucloud resources and I have to go to the calendar and click them on to be viewable again.
It happened without Owncloud resources too, ie. before I connected Kontakt to OC.

I am under KaOS and using Kontact 5.2.3.

Any tips?