ValueError: Sensor sensor.smart_meter_gas_import_today has device class energy, state class measurement unit kWh and suggested precision None thus indicating it has a numeric value; however, it has the non-numeric value: unknown (<class 'str'>)

[watsonpaul80]

First occurred: 5:46:20 PM (634 occurrences)
Last logged: 7:31:50 PM

Exception raised when updating state of sensor.smart_meter_gas_import_today, topic: 'glow/441793504B04/SENSOR/gasmeter' with payload: b'{"gasmeter":{"timestamp":"2023-05-19T18:29:14Z","energy":{"import":{"cumulative":87448.000,"day":0.000,"week":null,"month":null,"units":"kWh","cumulativevol":87448.000,"cumulativevolunits":"kWh","dayvol":0.000,"weekvol":null,"monthvol":null,"dayweekmonthvolunits":"kWh","mprn":"1288362102","supplier":"---","price":{"unitrate":0.10199,"standingcharge":0.28484}}}}}'
Exception raised when updating state of sensor.smart_meter_gas_import_today, topic: 'glow/441793504B04/SENSOR/gasmeter' with payload: b'{"gasmeter":{"timestamp":"2023-05-19T18:29:46Z","energy":{"import":{"cumulative":87448.000,"day":0.000,"week":null,"month":null,"units":"kWh","cumulativevol":87448.000,"cumulativevolunits":"kWh","dayvol":0.000,"weekvol":null,"monthvol":null,"dayweekmonthvolunits":"kWh","mprn":"1288362102","supplier":"---","price":{"unitrate":0.10199,"standingcharge":0.28484}}}}}'
Exception raised when updating state of sensor.smart_meter_gas_import_today, topic: 'glow/441793504B04/SENSOR/gasmeter' with payload: b'{"gasmeter":{"timestamp":"2023-05-19T18:30:18Z","energy":{"import":{"cumulative":87448.000,"day":0.000,"week":null,"month":null,"units":"kWh","cumulativevol":87448.000,"cumulativevolunits":"kWh","dayvol":0.000,"weekvol":null,"monthvol":null,"dayweekmonthvolunits":"kWh","mprn":"1288362102","supplier":"---","price":{"unitrate":0.10199,"standingcharge":0.28484}}}}}'
Exception raised when updating state of sensor.smart_meter_gas_import_today, topic: 'glow/441793504B04/SENSOR/gasmeter' with payload: b'{"gasmeter":{"timestamp":"2023-05-19T18:30:43Z","energy":{"import":{"cumulative":87448.000,"day":0.000,"week":null,"month":null,"units":"kWh","cumulativevol":87448.000,"cumulativevolunits":"kWh","dayvol":0.000,"weekvol":null,"monthvol":null,"dayweekmonthvolunits":"kWh","mprn":"1288362102","supplier":"---","price":{"unitrate":0.10199,"standingcharge":0.28484}}}}}'
Exception raised when updating state of sensor.smart_meter_gas_import_today, topic: 'glow/441793504B04/SENSOR/gasmeter' with payload: b'{"gasmeter":{"timestamp":"2023-05-19T18:31:16Z","energy":{"import":{"cumulative":87448.000,"day":0.000,"week":null,"month":null,"units":"kWh","cumulativevol":87448.000,"cumulativevolunits":"kWh","dayvol":0.000,"weekvol":null,"monthvol":null,"dayweekmonthvolunits":"kWh","mprn":"1288362102","supplier":"---","price":{"unitrate":0.10199,"standingcharge":0.28484}}}}}'
Traceback (most recent call last):
File "/usr/src/homeassistant/homeassistant/components/sensor/init.py", line 579, in state
numerical_value = int(value)
ValueError: invalid literal for int() with base 10: 'unknown'

The above exception was the direct cause of the following exception:

Traceback (most recent call last):
File "/usr/src/homeassistant/homeassistant/components/mqtt/models.py", line 270, in process_write_state_requests
entity.async_write_ha_state()
File "/usr/src/homeassistant/homeassistant/helpers/entity.py", line 585, in async_write_ha_state
self._async_write_ha_state()
File "/usr/src/homeassistant/homeassistant/helpers/entity.py", line 649, in _async_write_ha_state
state = self._stringify_state(available)
File "/usr/src/homeassistant/homeassistant/helpers/entity.py", line 591, in _stringify_state
if (state := self.state) is None:
File "/usr/src/homeassistant/homeassistant/components/sensor/init.py", line 583, in state
raise ValueError(
ValueError: Sensor sensor.smart_meter_gas_import_today has device class energy, state class measurement unit kWh and suggested precision None thus indicating it has a numeric value; however, it has the non-numeric value: unknown (<class 'str'>)