Plesk + Nginx + Prestashop + Muti language get 404 on short url

After see response from Bruno Leveque adapt solution to scenario:

In form text of Plesk for Nginx directives put this:

set $admin_dir /Backoffice;
index index.php;

# Redirect 404 errors to prestashop
error_page 404 /index.php?controller=404;

# Gzip Settings, convert all types.
gzip on;
gzip_vary on;
gzip_proxied any;

# Can be enhance to 5, but it can slow you server
# gzip_comp_level    5;
# gzip_min_length    256;

gzip_types
application/atom+xml
application/javascript
application/json
application/ld+json
application/manifest+json
application/rss+xml
application/vnd.geo+json
application/vnd.ms-fontobject
application/x-font-ttf
application/x-web-app-manifest+json
application/xhtml+xml
application/xml
font/opentype
image/bmp
image/svg+xml
image/x-icon
text/cache-manifest
text/css
text/plain
text/vcard
text/vnd.rim.location.xloc
text/vtt
text/x-component
text/x-cross-domain-policy;

gzip_disable "MSIE [1-6].(?!.*SV1)";

# HSTS (Force clients to interact with your website using HTTPS only)
# For enhanced security, register your site here: https://hstspreload.org/
# WARNING: Don't use this if your site is not fully on HTTPS!
# add_header Strict-Transport-Security "max-age=63072000; includeSubDomains" preload; always;

# Cloudflare / Max CDN fix
location ~* .(eot|otf|ttf|woff(?:2)?)$ {
    add_header Access-Control-Allow-Origin *;
}

# Do not save logs for these
location = /favicon.ico {
    auth_basic off;
    allow all;
    log_not_found off;
    access_log off;
}

location = /robots.txt {
    auth_basic off;
    allow all;
    log_not_found off;
    access_log off;
}

# [REQUIRED EDIT IF MULTILANG]
rewrite ^/es$ /es/ redirect;
rewrite ^/es/(.*) /$1;
rewrite ^/en$ /en/ redirect;
rewrite ^/en/(.*) /$1;
rewrite ^/zh$ /zh/ redirect;
rewrite ^/zh/(.*) /$1;

# Images
rewrite ^/([0-9])(-[_a-zA-Z0-9-]*)?(-[0-9]+)?/.+.jpg$ /img/p/$1/$1$2$3.jpg last;
rewrite ^/([0-9])([0-9])(-[_a-zA-Z0-9-]*)?(-[0-9]+)?/.+.jpg$ /img/p/$1/$2/$1$2$3$4.jpg last;
rewrite ^/([0-9])([0-9])([0-9])(-[_a-zA-Z0-9-]*)?(-[0-9]+)?/.+.jpg$ /img/p/$1/$2/$3/$1$2$3$4$5.jpg last;
rewrite ^/([0-9])([0-9])([0-9])([0-9])(-[_a-zA-Z0-9-]*)?(-[0-9]+)?/.+.jpg$ /img/p/$1/$2/$3/$4/$1$2$3$4$5$6.jpg last;
rewrite ^/([0-9])([0-9])([0-9])([0-9])([0-9])(-[_a-zA-Z0-9-]*)?(-[0-9]+)?/.+.jpg$ /img/p/$1/$2/$3/$4/$5/$1$2$3$4$5$6$7.jpg last;
rewrite ^/([0-9])([0-9])([0-9])([0-9])([0-9])([0-9])(-[_a-zA-Z0-9-]*)?(-[0-9]+)?/.+.jpg$ /img/p/$1/$2/$3/$4/$5/$6/$1$2$3$4$5$6$7$8.jpg last;
rewrite ^/([0-9])([0-9])([0-9])([0-9])([0-9])([0-9])([0-9])(-[_a-zA-Z0-9-]*)?(-[0-9]+)?/.+.jpg$ /img/p/$1/$2/$3/$4/$5/$6/$7/$1$2$3$4$5$6$7$8$9.jpg last;
rewrite ^/([0-9])([0-9])([0-9])([0-9])([0-9])([0-9])([0-9])([0-9])(-[_a-zA-Z0-9-]*)?(-[0-9]+)?/.+.jpg$ /img/p/$1/$2/$3/$4/$5/$6/$7/$8/$1$2$3$4$5$6$7$8$9$10.jpg last;
rewrite ^/c/([0-9]+)(-[.*_a-zA-Z0-9-]*)(-[0-9]+)?/.+.jpg$ /img/c/$1$2$3.jpg last;
rewrite ^/c/([a-zA-Z_-]+)(-[0-9]+)?/.+.jpg$ /img/c/$1$2.jpg last;

location ~ (/es|/en|/zh)/index.php$ {
    try_files $uri $uri/ /index.php?$args;
}

try_files $uri $uri/ /index.php?$args;

# Symfony controllers Specific for 1.7
location ~ /(international|_profiler|module|product|combination|specific-price)/(.*)$ {
    try_files $uri $uri/ /index.php?q=$uri&$args $admin_dir/index.php$is_args$args;
}

# AlphaImageLoader for IE and fancybox
rewrite ^images_ie/?([^/]+).(jpe?g|png|gif)$ js/jquery/plugins/fancybox/images/$1.$2 last;

# Web service API
rewrite ^/api/?(.*)$ /webservice/dispatcher.php?url=$1 last;

# Installation sandbox
rewrite ^(/install(?:-dev)?/sandbox)/(.*) /$1/test.php last;

# [REQUIRED EDIT] Change this block to your admin folder
location /Backoffice/ {
    if (!-e $request_filename) {
        rewrite ^/.*$ /Backoffice/index.php last;
    }
}

# File security
# .htaccess .DS_Store .htpasswd etc
location ~ /. {
    deny all;
}
# Source code directories
location ~ ^/(app|bin|cache|classes|config|controllers|docs|localization|override|src|tests|tools|translations|travis-scripts|vendor|var)/ {
    deny all;
}
# Prevent exposing other sensitive files
location ~ .(yml|log|tpl|twig|sass)$ {
    deny all;
}

# Prevent injection of php files
location /upload {
    location ~ .php$ {
        deny all;
    }
}
location /img {
    location ~ .php$ {
        deny all;
    }
}

#location ~* .(js|css|png|jpg|jpeg|gif|ico)$ {
    #   expires 30d;
    #   add_header Cache-Control "public, no-transform";
    #}

    #location ~*  .(jpg|jpeg|gif|png)$ {
        #   expires 365d;
        #}
        #location ~*  .(pdf|css|html|js|swf)$ {
            #   expires 2d;
            #}
            location ~* .(?:ico|css|js|gif|jpe?g|png)$ {
                expires 30d;
                add_header Pragma public;
                add_header Cache-Control "public";
            }

Solution explained in Spanish