The page isn’t redirecting properly in HTTPS version 1.7.4.4

[nibe]

I use nginx server and Prestashop 1.7.4.4 on a centos7, php5.6 is also installed.
I configure nginx to serve 3 website, one in wordpress, one is a proxy torwards a Tomcat and one is with prestashop.

Everything is fine without HTTPS.
I install certbot for the certificate, and run it.
It did what it has to do with the 3 sites file configuration.
All sites beside prestashop now works fine and if one try to connect in HTTP is redirected to HTTPS.

I install prestashop by command line like this:

     php index_cli.php --name=name --country=it --domain=www.namedoamin.com --db_server=127.0.0.1 --db_name=dbname --db_user=dbuser --db_password=password

without https it works fine, but once I installed the certificate and redirect the traffic from http to https the browser says the infamous:

    The page isn’t redirecting properly

There are plenty of info about this issue but none helps me.
This is the block from nginx:

    server {
        server_name  www.name.com;
        location / {
            root   /var/www/html/website.com;
            index  index.php index.html index.htm;
        }
        error_page   500 502 503 504  /50x.html;
        location = /50x.html {
            root   html;
        }

        location ~ \.php$ {
            root           /var/www/html/website.com;
            fastcgi_pass   unix:/var/run/php-fpm/php-fpm.sock;
            fastcgi_index  index.php;
            fastcgi_param  SCRIPT_FILENAME  $document_root$fastcgi_script_name;
            fastcgi_param QUERY_STRING $query_string;
            include         /etc/nginx/fastcgi_params;
        }

 

    listen 443 ssl; # managed by Certbot
    ssl_certificate /etc/letsencrypt/live/www.namesite.com/fullchain.pem; # managed by Certbot
    ssl_certificate_key /etc/letsencrypt/live/www.namesite.com/privkey.pem; # managed by Certbot
    include /etc/letsencrypt/options-ssl-nginx.conf; # managed by Certbot
    ssl_dhparam /etc/letsencrypt/ssl-dhparams.pem; # managed by Certbot
    
    server {
    if ($host = www.namesite.com) {
        return 301 https://$host$request_uri;
    } # managed by Certbot

        server_name  www.namesite.com;
         listen 80;
       return 404; # managed by Certbot
      }

If I go in admin section it works in HTTPS, but if i try to go in settings/general it gives me 404 not found, very weird!
I have no idea what to do anymore I'm desperate, I try all the tricks I red on internet before posting.

[siddharthpatil]

I have followed following tutorial https://linux4one.com/secure-nginx-with-lets-encrypt-ssl-on-centos-7

but the thing is that I have done it with php7.2, MariaDB and Nginx