hi the google calendar stops working i im getting the message response error 400, i got this on the log
google: Error on device update!
Traceback (most recent call last):
File "/usr/src/homeassistant/homeassistant/helpers/entity_platform.py", line 304, in _async_add_entity
await entity.async_device_update(warning=False)
File "/usr/src/homeassistant/homeassistant/helpers/entity.py", line 461, in async_device_update
await self.hass.async_add_executor_job(self.update)
File "/usr/local/lib/python3.7/concurrent/futures/thread.py", line 57, in run
result = self.fn(*self.args, **self.kwargs)
File "/usr/src/homeassistant/homeassistant/components/google/calendar.py", line 106, in update
self.data.update()
File "/usr/src/homeassistant/homeassistant/util/__init__.py", line 240, in wrapper
result = method(*args, **kwargs)
File "/usr/src/homeassistant/homeassistant/components/google/calendar.py", line 169, in update
service, params = self._prepare_query()
File "/usr/src/homeassistant/homeassistant/components/google/calendar.py", line 132, in _prepare_query
service = self.calendar_service.get()
File "/usr/src/homeassistant/homeassistant/components/google/__init__.py", line 346, in get
http = credentials.authorize(httplib2.Http())
AttributeError: 'NoneType' object has no attribute 'authorize'