Yesterday, the fedia.io server locked up. I was able to reboot it remotely and it came up clean. After less than an hour, the server froze again. This happened several more times throughout the day. Unfortunately, there were no logs recording what happened, and nothing on the console - just frozen hardware.
I contacted Hetzner early this morning and they diagnosed the server as having a faulty motherboard. Hetzner replaced the board and rebooted the server, and so far the server has been stable.
I have had pretty bad luck with this particular model of server from Hetzner, so I do not have confidence that this won't happen again, and so will be looking to migrate to a different type of server that is hopefully more stable and less expensive (I am losing my job at the end of June, and so need to save all the cash I can).
I'll open the back up. An issue with mbin is that there's no way to moderate new accounts, and so I have been battling massive amounts of spam, and the moderation interface for mbin is not super efficient, so it creates a LOT of work.