Nginx Config File Issue (Which One Is The Right One?)

Hi,

I tried many config files I saw online but none have got me out of the “Welcome to NGINX” page.
I have Ubuntu with NGINX WS running. I have other websites. I ran the discourse-setup after I modified app.yml. Before I modified app.yml, I created the discourse.conf block for NGINX. Below is what I currently got from both:

discourse.conf: