Why am i getting "Welcome to nginx! further configuration is required" when I type www.jamspaces.com instead of just jamspaces.com

server { listen 80;

server_name www.jamspaces.com jamspaces.com;

location / {
    proxy_pass http://localhost:8080;
    proxy_http_version 1.1;
    proxy_set_header Upgrade $http_upgrade;
    proxy_set_header Connection 'upgrade';
    proxy_set_header Host $host;
    proxy_cache_bypass $http_upgrade;
}

}

this did not seem to fix the problem :(

Edit your domain conf Server www.crazytut.com crazytut.com;