Xiaomi Mi Temp sensor on Qnap Docker

Hello Guys,

i’m trying to get my Xiaomi Mi Temp Sensor to work. I have installed home assistant on my Qnap using the Container Station.

It is also the first time using bluetooth with home assistant. I guess bluetooth is working because I see my TV and my Smartphone when I turn bluetooth on.

But i didn’t get the Temp sensor to work.
I added following to the configuration.yaml

sensor:
  - platform: mitemp_bt
    mac: '4C:65:A8:D8:AA:E1'
    name: Bad
    force_update: false
    median: 3
    monitored_conditions:
     - temperature
     - humidity
     - battery

 device_tracker:
  - platform: bluetooth_tracker

These are the only Informations i get
2018-07-22 12:54:55 WARNING (SyncWorker_12) [homeassistant.components.sensor.mitemp_bt] Polling error Could not read data from Mi Temp sensor 4C:65:A8:D8:AA:E1
2018-07-22 12:54:55 WARNING (SyncWorker_16) [homeassistant.components.sensor.mitemp_bt] Polling error Could not read data from Mi Temp sensor 4C:65:A8:D8:AA:E1
2018-07-22 12:55:05 WARNING (MainThread) [homeassistant.helpers.entity] Update of sensor.bad_battery is taking over 10 seconds
2018-07-22 12:55:25 WARNING (MainThread) [homeassistant.components.sensor] Updating mitemp_bt sensor took longer than the scheduled update interval 0:00:30
2018-07-22 12:55:26 WARNING (SyncWorker_5) [homeassistant.components.sensor.mitemp_bt] Polling error Exit read_ble, no data (<Thread(SyncWorker_5, started daemon 140585041778432)>)

Can you help me, please?

Thanks
djkroko