Aqara U200 cannot be controlled via Apple Home kit

Hi,
I connected the Aqara U200 lock to Apple Home using the Apple TV Box.
After connection I can See the State of the lock (openend/ closed) in the Apple Home App but I can neither close Not Open the lock with Apple Home.
When I Try to Open/ close the lock, I just get the Message „no answer“ within the Apple Home App.
Does anyone know how to fix the Problem?
Mama thx!

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@AqaraBot Any suggestions?