How do I remove "Welcome to nginx!" from website homepage?

Hi everyone, I used one-click wordpress and followed this tutorial to setup my site. I had access to wordpress, great! Then I followed this tutorial to setup Let’s Encrypt SSL. During that process, I installed nginx on Ubunto 16.04 using this tutorial. I was able to install Let’s Encrypt SSL successful!

However, I am no longer able to access wp-admin, or any part of my site for that matter, all I get is “Welcome to nginx!.” How can I remove this and get access to wordpress again? I think it might have to do with root /usr/share/nginx/html vs root /var/www/html.

Here’s my server info:

#
# You should look at the following URL's in order to grasp a solid understanding
# of Nginx configuration files in order to fully unleash the power of Nginx.
# http://wiki.nginx.org/Pitfalls
# http://wiki.nginx.org/QuickStart
# http://wiki.nginx.org/Configuration
#
# Generally, you will want to move this file somewhere, and start with a clean
# file but keep this around for reference. Or just disable in sites-enabled.
#
# Please see /usr/share/doc/nginx-doc/examples/ for more detailed examples.
##

# Default server configuration
#
server {
        listen 80 default_server;
        listen [::]:80 default_server;

        # SSL configuration
        #
        # listen 443 ssl default_server;
        # listen [::]:443 ssl default_server;
        #
        # Note: You should disable gzip for SSL traffic.
        # See: https://bugs.debian.org/773332
        #
        # Read up on ssl_ciphers to ensure a secure configuration.
        # See: https://bugs.debian.org/765782
        #
        # Self signed certs generated by the ssl-cert package
        # Don't use them in a production server!
        #
        # include snippets/snakeoil.conf;

        root /var/www/html;

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

        server_name _;

        location / {
  # First attempt to serve request as file, then
                # as directory, then fall back to displaying a 404.
                try_files $uri $uri/ =404;
        }

        # pass the PHP scripts to FastCGI server listening on 127.0.0.1:9000
        #
        #location ~ \.php$ {
        #       include snippets/fastcgi-php.conf;
        #
        #       # With php7.0-cgi alone:
        #       fastcgi_pass 127.0.0.1:9000;
        #       # With php7.0-fpm:
        #       fastcgi_pass unix:/run/php/php7.0-fpm.sock;
        #}

        # deny access to .htaccess files, if Apache's document root
        # concurs with nginx's one
        #
        #location ~ /\.ht {
        #       deny all;
        #


    listen [::]:443 ssl ipv6only=on; # managed by Certbot
    listen 443 ssl; # managed by Certbot
    ssl_certificate /etc/letsencrypt/live/josemota.org/fullchain.pem; # managed$
    ssl_certificate_key /etc/letsencrypt/live/josemota.org/privkey.pem; # manag$
    include /etc/letsencrypt/options-ssl-nginx.conf; # managed by Certbot
    ssl_dhparam /etc/letsencrypt/ssl-dhparams.pem; # managed by Certbot



}
server {
    if ($host = www.josemota.org) {
        return 301 https://$host$request_uri;
    } # managed by Certbot


    if ($host = josemota.org) {
        return 301 https://$host$request_uri;

}
    listen [::]:443 ssl ipv6only=on; # managed by Certbot
    listen 443 ssl; # managed by Certbot
    ssl_certificate /etc/letsencrypt/live/josemota.org/fullchain.pem; # managed$
    ssl_certificate_key /etc/letsencrypt/live/josemota.org/privkey.pem; # manag$
    include /etc/letsencrypt/options-ssl-nginx.conf; # managed by Certbot
    ssl_dhparam /etc/letsencrypt/ssl-dhparams.pem; # managed by Certbot



}
server {
    if ($host = www.josemota.org) {
        return 301 https://$host$request_uri;
    } # managed by Certbot


    if ($host = josemota.org) {
        return 301 https://$host$request_uri;
    } # managed by Certbot


        listen 80 ;
        listen [::]:80 ;
    server_name www.josemota.org josemota.org;
    return 404; # managed by Certbot