Deploy 2 sites on vps?

Question

Django

I have a django project. I want to upload it to vps where there is already a static site.
config /etc/nginx/sites-available/default

server {
        listen 80 default_server;
        listen [::]:80 default_server;


        root /var/www/Era;

        # Add index.php to the list if you are using PHP
        index index.html index.htm index.nginx-debian.html;

        server_name eraart.ru;

        location / {
                try_files $uri $uri/ =404;
        }

           error_page 404 /404.html;
        location = /404.html {
                root /var/www/Era;
                internal;
        }

}

Этот код(django) я добавил в конфиг уже после
upstream app_server {
    server unix:/home/split/Blog-Boards/run/gunicorn.sock fail_timeout=0;
}

server {
    listen 80;
    server_name www.site.com;  

    keepalive_timeout 5;
    client_max_body_size 4G;

    access_log /home/split/Blog-Boards/logs/nginx-access.log;
    error_log /home/split/Blog-Boards/logs/nginx-error.log;

    location /static/ {
        alias /home/split/Blog-Boards/static_root/;
    }

    # checks for static file, if not found proxy to app
    location / {
        try_files $uri @proxy_to_app;
    }

    location @proxy_to_app {
      proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
      proxy_set_header Host $http_host;
      proxy_redirect off;
      proxy_pass http://app_server;
    }
}

I created a symbolic link in /etc/nginx/sites-enable/default
I restarted nginx , I go to the address and nothing, please tell me how to sculpt 2 sites on one server?