Error about Tado

After a day of two this error comes in the event console

Handler TadoZoneHandler of thing tado:zone:demo:7 tried accessing its bridge although the handler was already disposed.

8 times, as i have 8 zones.
I searched an found this: [Chromecast] Fix refresh scheduling issues

So it seems a simular problem, but no idea how to solve it.

By the way it does not seem the be interferring with the working of the (tado) system

Restarting / cleaing cache helps, but only for a few days

I get this error sometimes too. Although I never had any further problems with this. I am operating my tado system for about two years now with OpenHAB.