Openhab does not change items state anymore after few days

I have at least a z-wave door sensor and a zigbee 3.0 motion sensor that stops working after a while.
The first day, these sensor working perfect but after few days the sensor does not trigger an items update in openhab anymore.
Since i double checked that the sensor is generally sending updates nack to its base, the error must be on openhab itself.

I can resolve the error temporarly, when i just change the description for the thing. Adding a letter is enough. In the logs the item then gets its current state again and everything works perfect for a while again.

Does anyone has a clue where i can have a look on?

Best regards