Home assistant Crashing

Hello all,

My home assistant is rebooting severall times a day.
I have already reinstalled everything but still the same.
I have an Raspberry pi 3b+

I can see my supervisor with some erros like this:

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/usr/src/supervisor/supervisor/homeassistant/websocket.py", line 326, in async_supervisor_event
    await self.async_send_message(
  File "/usr/src/supervisor/supervisor/homeassistant/websocket.py", line 268, in async_send_message
    await self._client.close()
          ^^^^^^^^^^^^^^^^^^
AttributeError: 'NoneType' object has no attribute 'close'
24-03-03 18:19:39 ERROR (MainThread) [asyncio] Task exception was never retrieved
future: <Task finished name='Task-24189' coro=<HomeAssistantWebSocket.async_supervisor_event() done, defined at /usr/src/supervisor/supervisor/homeassistant/websocket.py:321> exception=AttributeError("'NoneType' object has no attribute 'close'")>
Traceback (most recent call last):
  File "/usr/src/supervisor/supervisor/homeassistant/websocket.py", line 266, in async_send_message
    await self._client.async_send_command(message)
  File "/usr/src/supervisor/supervisor/homeassistant/websocket.py", line 94, in async_send_command
    return await self._futures[message["id"]]
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
supervisor.exceptions.HomeAssistantWSConnectionError: Connection was closed

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/usr/src/supervisor/supervisor/homeassistant/websocket.py", line 326, in async_supervisor_event
    await self.async_send_message(
  File "/usr/src/supervisor/supervisor/homeassistant/websocket.py", line 268, in async_send_message
    await self._client.close()
          ^^^^^^^^^^^^^^^^^^
AttributeError: 'NoneType' object has no attribute 'close'

My processor use is this:

The memory usage is this:

What can be causing this?
Any hint?

Please see
Heading #1 - Search
Heading #13 -Share the Logs (there may be information in other logs you have not shared) here:

Do your your crash times corollate with the memory processor spike times and the errors in the supervisor log?

Are you sure (how do you know) it’s not a hardware problem (power supply, etc.)?

Hello @MaxK,

Actually i have this chart comparing processor use and memory, where we can see that the when the memory rises the processor use get higher.

Also the system check of the voltage is always given information that:

Logger: homeassistant.components.rpi_power.binary_sensor
Source: components/rpi_power/binary_sensor.py:55
Integration: Raspberry Pi Power Supply Checker (documentation, issues)
First occurred: 15:14:14 (35 occurrences)
Last logged: 18:16:49

Under-voltage was detected. Consider getting a uninterruptible power supply for your Raspberry Pi.

Regarding the under voltage i cant see how, because i have a 60W power on it.

Power supplies can fail. Try another power supply.