Fireplace mode Remeha integration stops working correctly

The fireplace mode of my Remeha HACS integration stops working correctly. I use a Docker container. After the last update of the container I got this problem. The fireplace mode still working in the official Remeha app and eventually also in Home Assistant, but with the fault below. I can configure the switch for the fireplace mode (on/off). But when I use the switch I get the message:

Actie switch/turn_on kon niet worden uitgevoerd. 'outdoorTemperature' remeha home assistant.

With this fault my automation (switch on/off radiators when fireplace is off/on) doesn’t work anymore.

I have the latest integration version of 0.1.16. I downgraded to version 0.1.15, but the problem is still there.

When I restart Home Assistant the message below appears in the log:

Logger: homeassistant.components.sensor
Bron: helpers/entity_platform.py:609
integratie: Sensor (documentatie, problemen)
Eerst voorgekomen: 21:00:37 (1 gebeurtenissen)
Laatst gelogd: 21:00:37

Error adding entity sensor.myhome_outdoor_temperature for domain sensor with platform remeha_home
Traceback (most recent call last):
  File "/usr/src/homeassistant/homeassistant/helpers/entity_platform.py", line 609, in _async_add_entities
    await coro
  File "/usr/src/homeassistant/homeassistant/helpers/entity_platform.py", line 928, in _async_add_entity
    await entity.add_to_platform_finish()
  File "/usr/src/homeassistant/homeassistant/helpers/entity.py", line 1384, in add_to_platform_finish
    self.async_write_ha_state()
    ~~~~~~~~~~~~~~~~~~~~~~~~~^^
  File "/usr/src/homeassistant/homeassistant/helpers/entity.py", line 1023, in async_write_ha_state
    self._async_write_ha_state()
    ~~~~~~~~~~~~~~~~~~~~~~~~~~^^
  File "/usr/src/homeassistant/homeassistant/helpers/entity.py", line 1148, in _async_write_ha_state
    self.__async_calculate_state()
    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^
  File "/usr/src/homeassistant/homeassistant/helpers/entity.py", line 1085, in __async_calculate_state
    state = self._stringify_state(available)
  File "/usr/src/homeassistant/homeassistant/helpers/entity.py", line 1029, in _stringify_state
    if (state := self.state) is None:
                 ^^^^^^^^^^
  File "/usr/src/homeassistant/homeassistant/components/sensor/__init__.py", line 520, in state
    value = self.native_value
            ^^^^^^^^^^^^^^^^^
  File "/config/custom_components/remeha_home/sensor.py", line 88, in native_value
    data = data[part]
           ~~~~^^^^^^
KeyError: 'outdoorTemperature'

Hopefully can someone give me a hint or better…solve my problem. Thanks in advance.