At around 6:30 PM Eastern Standard Time on Monday, February 26th, 2018, all services hosted on https://devosmium.xyz became inaccessible for around two hours.
Why did it happen?
As far as I can tell, Windows shut down to conduct mandatory system updates and did not start up again.
How am I fixing it?
I’m moving back to Ubuntu 16.04, which I really shouldn’t have moved away from. This upgrade will be conducted within the day, at which time this issue shouldn’t happen again.