When attempting to go to the plugins page on my new install, I get a 504 error. I was able to narrow this down to the connection to packages.nodebb.org timing out. It turns out that my VPS cannot connect to 159.203.9.60 at all. Port 80 doesn't work, port 443 doesn't work, and pings do not work, however I have no issues with my home connection. Could my VPS's IP be blocked?