How to fix 301 redirect with www

Hello boss my website host on nginx 14.1 server with ubuntu 18.4 i install ssl letsencypty by Certbot this way sudo certbot --nginx -d godsunsat.com -d www.godsunsat.com this is my file /etc/nginx/sites-available/godsunsat.com

server {

    root /var/www/godsunsat.com/public_html;
    
   index index.php index.html index.htm index.nginx-debian.html;
    server_name www.godsunsat.in godsunsat.com;
    location / {
            
            try_files $uri $uri/ /index.php?$args;
    }
    
    location ~ \.php$ {
            include snippets/fastcgi-php.conf;

            fastcgi_pass unix:/var/run/php/php7.2-fpm.sock;
            
    }
    
    location ~ /\.ht {
            deny all;
    }
listen [::]:443 ssl ipv6only=on; # managed by Certbot
listen 443 ssl; # managed by Certbot
ssl_certificate /etc/letsencrypt/live/godsunsat.com/fullchain.pem; # ma$
ssl_certificate_key /etc/letsencrypt/live/godsunsat.com/privkey.pem; # $
include /etc/letsencrypt/options-ssl-nginx.conf; # managed by Certbot
ssl_dhparam /etc/letsencrypt/ssl-dhparams.pem; # managed by Certbot

}

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

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

   listen 80 default_server;
    listen [::]:80 default_server;
    server_name www.godsunsat.com godsunsat.com;
   return 301 https://www.godsunsat.com/$request_uri;
return 404; # managed by Certbot
}

My website open 2 url look this https://godsunsat.com and https://www.godsunsat.com but I want it open like this url https://www.godsunsat.com/ please help how to fix i am not developer Still work plz Show easy way

error chack this site https://check-your-website.server-daten.de/?q=godsunsat.com

this error

Error - no preferred version www or non-www. Select one version as preferred version, then add a redirect https + not-preferred version to https + preferred version. Perhaps in your port 443 vHost something like “RewriteEngine on” + “RewriteCond %{SERVER_NAME} = example.com” + “ReWriteRule ^ https://www.example.com%{REQUEST_URI} [END,QSA,R=permanent]” (three rows, without the "). That should create a redirect https + example.com ⇒ https + www.example.com. Or switch both values to use the non-www version as your preferred version.

Please help