device class error

[schizzofrenik]

Hi Andrea,
i have this error on device class, can you check?

Logger: homeassistant
Source: components/sensor/init.py:583
First occurred: 1 giugno 2023 alle ore 14:54:33 (4 occurrences)
Last logged: 1 giugno 2023 alle ore 14:54:33

Error doing job: Task exception was never retrieved
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: 'HEATING'

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

Traceback (most recent call last):
File "/usr/src/homeassistant/homeassistant/helpers/template_entity.py", line 379, in _async_template_startup
result_info.async_refresh()
File "/usr/src/homeassistant/homeassistant/helpers/event.py", line 953, in async_refresh
self._refresh(None)
File "/usr/src/homeassistant/homeassistant/helpers/event.py", line 1133, in _refresh
self.hass.async_run_hass_job(self._job, event, updates)
File "/usr/src/homeassistant/homeassistant/core.py", line 607, in async_run_hass_job
hassjob.target(*args)
File "/usr/src/homeassistant/homeassistant/helpers/template_entity.py", line 348, in _handle_results
self.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.termostato_zona_notte_custom_function has device class power, state class None unit None and suggested precision None thus indicating it has a numeric value; however, it has the non-numeric value: HEATING (<class 'str'>)