Multisite installed correctly don't give My sites options

Hi, we installed in Dec in a brand new site a Multisite version and follow all instruction in order to create in few months a new /directory/ site.
But now we cannot find the options in MY SITES.
CHECK 1 – wp-config.php is ok with the code:
/* Multisite */
define(‘MULTISITE’, true);
define(‘SUBDOMAIN_INSTALL’, false);
define(‘DOMAIN_CURRENT_SITE’, ‘championscity.it’);
define(‘PATH_CURRENT_SITE’, ‘/’);
define(‘SITE_ID_CURRENT_SITE’, 1);
define(‘BLOG_ID_CURRENT_SITE’, 1);
CHECK 2 – .htaccess is ok with the code
RewriteEngine On
RewriteBase /
RewriteRule ^index\.php$ – [L]
# add a trailing slash to /wp-admin
RewriteRule ^([_0-9a-zA-Z-]+/)?wp-admin$ $1wp-admin/ [R=301,L]
RewriteCond %{REQUEST_FILENAME} -f [OR]
RewriteCond %{REQUEST_FILENAME} -d
RewriteRule ^ – [L]
RewriteRule ^([_0-9a-zA-Z-]+/)?(wp-(content|admin|includes).*) $2 [L]
RewriteRule ^([_0-9a-zA-Z-]+/)?(.*\.php)$ $2 [L]
RewriteRule . index.php [L]
CHECK 3 – PERMALINK are ok with
https://www.championscity.it/blog/2016/06/07/articolo d’esempio/
CHECK 4 – the primary domain is working…

so why in HOME > MY SITES we can only see the Primary Site and we don’t have any other button to ADD A SITE?

thank you for your help!