If you are having this issue, I would suggest starting a trouble ticket by emailing support@hubitat.com .
I don't think this is a widespread issue, so it probably is something unique to your hub or something running on your hub.
In the mean time, are there any errors in the logs or anything else you can post for us to go on? Have you tried any steps on your own to solve this? Maybe even just post the logs for the time period just before the crash.
Edit: I see you started another thread about this. You probably should try to keep all information on one thread so people aren't duplicating efforts.
