I am unsure. It is possible that Windows did an update last night which restarted the machine, and in turn force stopped the CMD window hosting caddy.
I notice now that some of my domains are directing properly, however a very very long load time.
And still some web apps behind a proxy are not loading at all.
I have since removed the original certificates and re ran caddy, authenticated new certs for the domain, but still long processing and caddy seems to have gotten caught up somewhere in the loading process.
It looks like sophos antivirus updated their application and enabled a “block-all” on internet traffic.
Sophos will pipe all traffic that cines through the firewall, through their anti virus. It caused major issues. However, once I was able to pinpoint the issue, I was able to fix it and all is well in the world.