Supervisor has CORE errors

Installation Home Assistant OS
1

I’m running HA (Home Assistant OS 5.13/supervisor-2021.04.3/core-2021.4.6) on a RPI4/8GB and I found the following error messages in the logfile of the core .
And as I have been raised with the idea that there should be no errors in a logfile, I have the question where do the errors come from.

File "/usr/src/homeassistant/homeassistant/helpers/update_coordinator.py", line 161, in async_refresh
    await self._async_refresh(log_failures=True)
  File "/usr/src/homeassistant/homeassistant/helpers/update_coordinator.py", line 235, in _async_refresh
    update_callback()
  File "/usr/src/homeassistant/homeassistant/helpers/update_coordinator.py", line 295, in _handle_coordinator_update
    self.async_write_ha_state()
  File "/usr/src/homeassistant/homeassistant/helpers/entity.py", line 310, in async_write_ha_state
    self._async_write_ha_state()
  File "/usr/src/homeassistant/homeassistant/helpers/entity.py", line 334, in _async_write_ha_state
    sstate = self.state
  File "/usr/src/homeassistant/homeassistant/components/pi_hole/sensor.py", line 72, in state
    return round(self.api.data[self._condition], 2)
KeyError: 'ads_percentage_today'
2021-05-06 10:22:09 ERROR (MainThread) [homeassistant] Error doing job: Task exception was never retrieved
Traceback (most recent call last):
  File "/usr/src/homeassistant/homeassistant/helpers/update_coordinator.py", line 130, in _handle_refresh_interval
    await self.async_refresh()
  File "/usr/src/homeassistant/homeassistant/helpers/update_coordinator.py", line 161, in async_refresh
    await self._async_refresh(log_failures=True)
  File "/usr/src/homeassistant/homeassistant/helpers/update_coordinator.py", line 235, in _async_refresh
    update_callback()
  File "/usr/src/homeassistant/homeassistant/helpers/update_coordinator.py", line 295, in _handle_coordinator_update
    self.async_write_ha_state()
  File "/usr/src/homeassistant/homeassistant/helpers/entity.py", line 310, in async_write_ha_state
    self._async_write_ha_state()
  File "/usr/src/homeassistant/homeassistant/helpers/entity.py", line 334, in _async_write_ha_state
    sstate = self.state
  File "/usr/src/homeassistant/homeassistant/components/pi_hole/sensor.py", line 72, in state
    return round(self.api.data[self._condition], 2)
KeyError: 'ads_percentage_today'
2021-05-06 10:27:09 ERROR (MainThread) [homeassistant] Error doing job: Task exception was never retrieved
Traceback (most recent call last):
  File "/usr/src/homeassistant/homeassistant/helpers/update_coordinator.py", line 130, in _handle_refresh_interval
    await self.async_refresh()
  File "/usr/src/homeassistant/homeassistant/helpers/update_coordinator.py", line 161, in async_refresh
    await self._async_refresh(log_failures=True)
  File "/usr/src/homeassistant/homeassistant/helpers/update_coordinator.py", line 235, in _async_refresh
    update_callback()
  File "/usr/src/homeassistant/homeassistant/helpers/update_coordinator.py", line 295, in _handle_coordinator_update
    self.async_write_ha_state()
  File "/usr/src/homeassistant/homeassistant/helpers/entity.py", line 310, in async_write_ha_state
    self._async_write_ha_state()
  File "/usr/src/homeassistant/homeassistant/helpers/entity.py", line 334, in _async_write_ha_state
    sstate = self.state
  File "/usr/src/homeassistant/homeassistant/components/pi_hole/sensor.py", line 72, in state
    return round(self.api.data[self._condition], 2)
KeyError: 'ads_percentage_today'
2021-05-06 10:27:32 ERROR (MainThread) [homeassistant.components.upnp] Error requesting Technicolor TC7210 data: [Errno 104] Connection reset by peer
2021-05-06 10:32:09 ERROR (MainThread) [homeassistant] Error doing job: Task exception was never retrieved
Traceback (most recent call last):
  File "/usr/src/homeassistant/homeassistant/helpers/update_coordinator.py", line 130, in _handle_refresh_interval
    await self.async_refresh()
  File "/usr/src/homeassistant/homeassistant/helpers/update_coordinator.py", line 161, in async_refresh
    await self._async_refresh(log_failures=True)
  File "/usr/src/homeassistant/homeassistant/helpers/update_coordinator.py", line 235, in _async_refresh
    update_callback()
  File "/usr/src/homeassistant/homeassistant/helpers/update_coordinator.py", line 295, in _handle_coordinator_update
    self.async_write_ha_state()
  File "/usr/src/homeassistant/homeassistant/helpers/entity.py", line 310, in async_write_ha_state
    self._async_write_ha_state()
  File "/usr/src/homeassistant/homeassistant/helpers/entity.py", line 334, in _async_write_ha_state
    sstate = self.state
  File "/usr/src/homeassistant/homeassistant/components/pi_hole/sensor.py", line 72, in state
    return round(self.api.data[self._condition], 2)
KeyError: 'ads_percentage_today'
2021-05-06 10:37:09 ERROR (MainThread) [homeassistant] Error doing job: Task exception was never retrieved
Traceback (most recent call last):
  File "/usr/src/homeassistant/homeassistant/helpers/update_coordinator.py", line 130, in _handle_refresh_interval
    await self.async_refresh()
  File "/usr/src/homeassistant/homeassistant/helpers/update_coordinator.py", line 161, in async_refresh
    await self._async_refresh(log_failures=True)
  File "/usr/src/homeassistant/homeassistant/helpers/update_coordinator.py", line 235, in _async_refresh
    update_callback()
  File "/usr/src/homeassistant/homeassistant/helpers/update_coordinator.py", line 295, in _handle_coordinator_update
    self.async_write_ha_state()
  File "/usr/src/homeassistant/homeassistant/helpers/entity.py", line 310, in async_write_ha_state
    self._async_write_ha_state()
  File "/usr/src/homeassistant/homeassistant/helpers/entity.py", line 334, in _async_write_ha_state
    sstate = self.state
  File "/usr/src/homeassistant/homeassistant/components/pi_hole/sensor.py", line 72, in state
    return round(self.api.data[self._condition], 2)
KeyError: 'ads_percentage_today'
2021-05-06 10:42:10 WARNING (Thread-8) [pychromecast.socket_client] [Chromecast2725(192.168.178.19):8009] Heartbeat timeout, resetting connection
2021-05-06 10:42:11 ERROR (MainThread) [homeassistant] Error doing job: Task exception was never retrieved
Traceback (most recent call last):
  File "/usr/src/homeassistant/homeassistant/helpers/update_coordinator.py", line 130, in _handle_refresh_interval
    await self.async_refresh()
  File "/usr/src/homeassistant/homeassistant/helpers/update_coordinator.py", line 161, in async_refresh
    await self._async_refresh(log_failures=True)
  File "/usr/src/homeassistant/homeassistant/helpers/update_coordinator.py", line 235, in _async_refresh
    update_callback()
  File "/usr/src/homeassistant/homeassistant/helpers/update_coordinator.py", line 295, in _handle_coordinator_update
    self.async_write_ha_state()
  File "/usr/src/homeassistant/homeassistant/helpers/entity.py", line 310, in async_write_ha_state
    self._async_write_ha_state()
  File "/usr/src/homeassistant/homeassistant/helpers/entity.py", line 334, in _async_write_ha_state
    sstate = self.state
  File "/usr/src/homeassistant/homeassistant/components/pi_hole/sensor.py", line 72, in state
    return round(self.api.data[self._condition], 2)
KeyError: 'ads_percentage_today'

If there is other information needed, pls let me know.

2

Where does this appear in your config?

ads_percentage_today

3

Thank you Tom for replying. I searched my config directory as follows:

grep -i ads_percentage_today $(find . -name \*.yaml )

With zero result.

4

Then it must be in another container. Do you use the AdGuard addon?

5

I use Pi-Hole and that was indeed the culprit.
Thank you for helping out. Yann