Nginx always falls back to default config - django

Question

My stack is django, gunicorn, nginx and supervisor running on a VPS from DigitalOcean.
Supervisor is running the program correctly but I always get the NGINX welcome page. If I delete the default nginx config file everything works and I get the website.
Here are my custom settings:
upstream maet_app_server {
# fail_timeout=0 means we always retry an upstream even if it failed
# to return a good HTTP response (in case the Unicorn master nukes a
# single worker for timing out).
server unix:/webapps/maet/run/gunicorn.sock fail_timeout=0;
}
server {
listen 80;
server_name maet.bg www.maet.com;
client_max_body_size 4G;
access_log /webapps/maet/logs/nginx-access.log;
error_log /webapps/maet/logs/nginx-error.log;
location /static/ {
alias /webapps/maet/website/static/;
}
location /media/ {
alias /webapps/maet/website/static/;
}
location / {
# an HTTP header important enough to have its own Wikipedia entry:
# http://en.wikipedia.org/wiki/X-Forwarded-For
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
# enable this if and only if you use HTTPS, this helps Rack
# set the proper protocol for doing redirects:
# proxy_set_header X-Forwarded-Proto https;
# pass the Host: header from the client right along so redirects
# can be set properly within the Rack application
proxy_set_header Host $http_host;
# we don't want nginx trying to do something clever with
# redirects, we set the Host: header above already.
proxy_redirect off;
# set "proxy_buffering off" *only* for Rainbows! when doing
# Comet/long-poll stuff. It's also safe to set if you're
# using only serving fast clients with Unicorn + nginx.
# Otherwise you _want_ nginx to buffer responses to slow
# clients, really.
# proxy_buffering off;
# Try to serve static files from nginx, no point in making an
# *application* server like Unicorn/Rainbows! serve static files.
if (!-f $request_filename) {
proxy_pass http://maet_app_server;
break;
}
}
# Error pages
error_page 500 502 503 504 /500.html;
location = /500.html {
root /webapps/maet/website/static/;
}
}
How do I change it to use this config instead of the default one?
I don't want to delete the default file because I need it for let's encrypt ssl.