Home Assistant Appears To Lock Up

My Home Assistant appears to be locking up. Once I reboot the server is comes back and then again hours later it locked up again. Not 100% sure where to look are there logs somewhere which will show what is locking it up?

Sorry for asking a dumb question but is has been running great for years. Just now it is starting to act up

Have you just upgraded, see this thread: 2022.11: A heck of a release! - #524 by mgb66

Thanks I will take a look, yes I am running on the latest now.
Home Assistant 2022.11.3
Supervisor 2022.10.2
Operating System 9.3
Frontend 20221108.0 - latest