UPGRADE OF POSTGRES FAILED - I've tried everything

nginx is installed because this has been a working forum for a couple years now. Was late with Digital Ocean and the Droplet got turned off. After turning it back on, I’m getting a 521 error going to the address. When I go to the IP Address I’m back to the Welcome screen.

The Cloudflare configuration has not changed.

And the nameservers are correct in NameCheap.

I haven’t changed anything in several months so I’m at a loss on where to look.