I received the email today from DigitalOcean,
We've had to reboot your Droplet as a result of an issue with the physical node that hosts your Droplet. We will continue to investigate the health of this phy...
I don't have access to your server so I don't know for sure what the issue could be. But since your server was rebooted, here's a benign action you can make to see if it helps (rebooting will undo any action you ta...