Hub unresponsive, green light on

Since I got my hub a few months back it has become unresponsive several times and yet the green light is on. I have included a snippet from my log below where you can see there is nothing really to indicate the issue - it just stops responding at 03:37.

I do not have much running on my hub - - a few zigbee devices, Lutron, and a few z-wave. I am mostly testing it out right now.

Is there a higher level of logging that I can turn on to try and diagnose this? Thanks.

Curious...what device is generating the Heartbeat was turned on/off messages?

I use Homeseer as my primary HA server. It is connected to Hubitat and is turning off a virtual device. Then I have a rule in Hubitat to turn it on. Homeseer monitors that device and if it doesn't get turned on alerts me. I did this because the hub keeps going unresponsive. I am assuming a network issue but there is not much to go on in the logs?

Open a ticket.