core: Soma integration is not working

Home Assistant release with the issue: 0.100.1

Last working Home Assistant release (if known): N/A

Operating environment (Hass.io/Docker/Windows/etc.): Hass.io

Integration: https://www.home-assistant.io/integrations/soma/

Description of problem: I tried to use the new soma integration as described in the documentation and it’s not working.

Problem-relevant configuration.yaml entries and (fill out even if it seems unimportant):

soma:
  host: !secret integration_soma_host
  port: 3000

Traceback (if applicable):

2019-10-10 22:20:04 ERROR (MainThread) [homeassistant.components.cover] soma: Error on device update!
Traceback (most recent call last):
  File "/usr/src/homeassistant/homeassistant/helpers/entity_platform.py", line 292, in _async_add_entity
    await entity.async_device_update(warning=False)
  File "/usr/src/homeassistant/homeassistant/helpers/entity.py", line 446, in async_device_update
    await self.async_update()
  File "/usr/src/homeassistant/homeassistant/components/soma/__init__.py", line 106, in async_update
    if response["result"] != "success":
KeyError: 'result'

Additional information: Soma connect is correctly setup, I control it from homeassistant using the homekit integration and from alexa without any issues.