freenetsave

I found the fix.
Go to “wp-config.php”

After update website(DOMAIN_CURRENT_SITE) address with www

define('WP_DEBUG', false);
define('WP_ALLOW_MULTISITE', true);
define( 'MULTISITE', true );
define( 'SUBDOMAIN_INSTALL', true );
$base = '/';
define( 'DOMAIN_CURRENT_SITE', 'www.freenetsave.com' );
define( 'PATH_CURRENT_SITE', '/' );
define( 'SITE_ID_CURRENT_SITE', 1 );
define( 'BLOG_ID_CURRENT_SITE', 1 );

So take off the www

code should be like this

define( 'DOMAIN_CURRENT_SITE', 'freenetsave.com' );

my problem solved

try this way