I am in beijing, and I can't access nodebb website or community without shadowsocks, I think maybe the China GFW block it. If nodebb need more people to use it. This problem should be solved, maybe build a mirror website?
@marcos For a sitewide change, go to your Admin Control Panel, then go into Languages, select from there. If you want to change the language on a per user basis, then click your profile picture in the top right, then your username, then in the top right you will see Settings, scroll to the bottom, and you can pick there instead.
If the language you want is not in the app, have a look at Transifex, where you can help translate if your chosen language isn't available.
Weird. At least when I was on I wasn't getting any error messages (and it was working just fine). Your site is 502 again I guess it's down. Maybe send me a chat next time we're both online and we can try and figure out what's going on.