Configuring nginx

I have an issue configuring nginx

My app sitting in /var/webapi

My config sitting in /etc/nginx/sites-available/webapi

server { listen 80; xxxxx-xxx.members.linode.com;

        location / {
                proxy_pass http://localhost:5000;
                proxy_http_version 1.1;
                proxy_set_header Upgrade $http_upgrade;
                proxy_set_header Connection keep-alive;
                proxy_set_header Host $host;
                proxy_cache_bypass $http_upgrade;
        } }

I am running my webapi in port 5000:

Me@ubuntu:~$ dotnet /var/webapi/WebApi.dll
Hosting environment: Production
Content root path: /home/Me
Now listening on: http://localhost:5000
Application started. Press Ctrl+C to shut down.

When I am navigating xxxxx-xxx.members.linode.com the browser I am getting 404 error - no any page displayed

Need help.