Unable to update 2022.12 and add-ons

I want to update HA 2022.12.0 to 2022.12.3, but I get the message:

… blocked from execution, system is not healthy - setup

I also get such message when I try to update an add-on. HA works fine, no problems. Also a restart didn’t help and no errors related to this found in the logging.

This is what the log is showing:

Logger: homeassistant.components.websocket_api.http.connection
Source: components/hassio/update.py:305
Integration: Home Assistant WebSocket API (documentation, issues)
First occurred: 20:01:52 (2 occurrences)
Last logged: 20:01:57

[547800011184] Error updating Home Assistant Core 'HomeAssistantCore.update' blocked from execution, system is not healthy - setup
Traceback (most recent call last):
  File "/usr/src/homeassistant/homeassistant/components/hassio/update.py", line 303, in async_install
    await async_update_core(self.hass, version=version, backup=backup)
  File "/usr/src/homeassistant/homeassistant/components/hassio/handler.py", line 51, in _wrapper
    raise HassioAPIError(data["message"])
homeassistant.components.hassio.handler.HassioAPIError: 'HomeAssistantCore.update' blocked from execution, system is not healthy - setup

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

Traceback (most recent call last):
  File "/usr/src/homeassistant/homeassistant/components/websocket_api/commands.py", line 200, in handle_call_service
    await hass.services.async_call(
  File "/usr/src/homeassistant/homeassistant/core.py", line 1745, in async_call
    task.result()
  File "/usr/src/homeassistant/homeassistant/core.py", line 1782, in _execute_service
    await cast(Callable[[ServiceCall], Awaitable[None]], handler.job.target)(
  File "/usr/src/homeassistant/homeassistant/helpers/entity_component.py", line 213, in handle_service
    await service.entity_service_call(
  File "/usr/src/homeassistant/homeassistant/helpers/service.py", line 678, in entity_service_call
    future.result()  # pop exception if have
  File "/usr/src/homeassistant/homeassistant/helpers/entity.py", line 943, in async_request_call
    await coro
  File "/usr/src/homeassistant/homeassistant/helpers/service.py", line 715, in _handle_entity_call
    await result
  File "/usr/src/homeassistant/homeassistant/components/update/__init__.py", line 154, in async_install
    await entity.async_install_with_progress(version, backup)
  File "/usr/src/homeassistant/homeassistant/components/update/__init__.py", line 413, in async_install_with_progress
    await self.async_install(version, backup)
  File "/usr/src/homeassistant/homeassistant/components/hassio/update.py", line 305, in async_install
    raise HomeAssistantError(
homeassistant.exceptions.HomeAssistantError: Error updating Home Assistant Core 'HomeAssistantCore.update' blocked from execution, system is not healthy - setup

Any ideas?

Fixed by hardware power down/up