@itimpi It was not expected. 😏 The server was running just fine, with all of my containers functioning properly. The power blinked and when the server came back online, nothing was running. I switched tabs and got this message that I initially posted. Now, it is entirely possible that it can just be restarted, but I don't know how to do that. I did try to manually reboot the server afterwards, in hopes that it would be restored, but that didn't happen.
I tried to Google how to restart the docker service, but I couldn't find that info. If you can point me in the right direction, that would be great. I just hope that nothing was lost.