Home Assistant crashes - how to debug?

Hello,

every month or so, my home assistant is crashing. I can’t reach it anymore (also the observer on port 4357 is gone) and ssh is not working anymore.
Only thing that works is a power cycle of the raspberry pi.

When does it happen?
Very often in the night at around 4am. Sometimes during the day when I opened a dashboard with lots of data in it.

What system am I running?
Raspberry pi 4 8gb in an argon one case with m.2 ssd.

Column 1 Column 2
Version core-2024.2.5
Installation Type Home Assistant OS
Development false
Supervisor true
Docker true
User root
Virtual Environment false
Python Version 3.12.1
Operating System Family Linux
Operating System Version 6.1.73-haos-raspi
CPU Architecture aarch64
Timezone Europe/Berlin
Configuration Directory /config

I keep my system updated pretty frequently.

I checked the old log that is saved after the reboot. There is nothing suspicious, except of a lot of “pyfritzhome.fritzhome” entries, not sure if this is something to worry about. The logfile is almost 18mb long.

How can I proceed to debug this? When I’m home its only annoying to do a power cycle. But when I’m away its impossible. I don’t want to discuss the possibility to do remote power cycles, I would like to solve the issue.