There are no error that show. Checked the log from the instance I ran for about 6 hours. It was the theme, though. I did the command given and it worked well. Thank you.

Hello. I changed the theme on the NodeBB installation and did ./nodebb build to rebuild it. When I turned NodeBB back on, nothing loads and I cannot access the page. If you would like to check it out, you can see at https://forums.minecakepvp.com

I'm not sure what to do, and cannot find anyone else with this issue. If I wait a minute, Nginx sends cloudflare 504.

config.json

{
    "url": "http://forums.minecakepvp.com:4567",
    "secret": "****",
    "database": "redis",
    "port": 4567,
    "redis": {
        "host": "127.0.0.1",
        "port": "6379",
        "password": "",
        "database": "1"
    }
}

nginx.conf

#user  nobody;
worker_processes  1;

#error_log  logs/error.log;
#error_log  logs/error.log  notice;
#error_log  logs/error.log  info;

#pid        logs/nginx.pid;


events {
    worker_connections  1024;
}


http {
    include       mime.types;
    default_type  application/octet-stream;
    keepalive_timeout  65;


    server{
        listen 80;
        server_name localhost;
        location /{
            proxy_set_header X-Real-IP $remote_addr;
            proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
            proxy_set_header X-Forwarded-Proto $scheme;
            proxy_set_header Host $http_host;
            proxy_set_header X-NginX-Proxy true;
            proxy_pass http://127.0.0.1:8080;
            proxy_redirect off;
            proxy_http_version 1.1;
            proxy_set_header Upgrade $http_upgrade;
            proxy_set_header Connection "upgrade";
        }
    }

    server{
        listen 80;
        server_name forums.minecakepvp.com;
        location /{
            proxy_set_header X-Real-IP $remote_addr;
            proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
            proxy_set_header X-Forwarded-Proto $scheme;
            proxy_set_header Host $http_host;
            proxy_set_header X-NginX-Proxy true;
            proxy_pass http://127.0.0.1:4567;
            proxy_redirect off;
            proxy_http_version 1.1;
            proxy_set_header Upgrade $http_upgrade;
            proxy_set_header Connection "upgrade";
        }
    }
}