Noniterable

[bucklevision]

Describe the bug
Lack of gas data for hours at a time while elec is fine and the Glow app shows gas data. Errors found in logs. This integration seems to work fine for days at a time, then keel over.

To Reproduce
Normal use.

Expected behaviour
No erros, gradual increase in gas use over day.

Debug log
Normal HA log, debug to follow.
Logger: homeassistant.helpers.entity
Source: helpers/entity.py:960
First occurred: 01:33:36 (42 occurrences)
Last logged: 11:33:36

Update for sensor.dcc_sourced_smart_electricity_meter_usage_today fails
Update for sensor.dcc_sourced_smart_gas_meter_usage_today fails
Traceback (most recent call last):
File "/usr/src/homeassistant/homeassistant/helpers/entity.py", line 960, in async_update_ha_state
await self.async_device_update()
File "/usr/src/homeassistant/homeassistant/helpers/entity.py", line 1318, in async_device_update
await self.async_update()
File "/config/custom_components/hildebrandglow_dcc/sensor.py", line 294, in async_update
(value, t_from) = await daily_data(self.hass, self.resource)
^^^^^^^^^^^^^^^
TypeError: cannot unpack non-iterable NoneType object