Aqara temperature sensors work in app but at HA only at start

Hello there,
I use a Synology NAS with a Docker installation of HA.
All four sensors where show in HA (all from Xiaomi - Temp and H). But their values in HA are always the same. In the Xiaomi home app I see actual values from the sensors which change their values by time.
When I restart the HA container I will receive actual values in HA again, but just once.

Do you have some advices?


In addition, the logfile says:

2019-11-21 17:35:27 INFO (SyncWorker_10) [homeassistant.components.xiaomi_aqara] Discovering Xiaomi Gateways (Try 1)
2019-11-21 17:35:27 INFO (MainThread) [homeassistant.setup] Setup of domain websocket_api took 0.0 seconds.
2019-11-21 17:35:27 INFO (SyncWorker_10) [xiaomi_gateway] Xiaomi Gateway xxxxxxxxxx configured at IP
2019-11-21 17:35:27 INFO (SyncWorker_10) [xiaomi_gateway] Discovering Xiaomi Devices
2019-11-21 17:35:27 INFO (MainThread) [homeassistant.setup] Setting up auth

Has anyone ever had the same issue?
I can play sounds via HA or switch the light on. With last one I got this error, even if it works properly:

(SyncWorker_4) [xiaomi_gateway] Got error element in data {“error”:“Invalid key”}