10 Subscribers But Only 1 Displays On Users.php Page

You could look at the database under the wp_users table to see if they’re displaying there as that’s where all users to a site are typically stored. This link is for something slightly different but would provide some guidance on checking phpmyadmin and finding the wp_users table. Hope this helps some.

https://www.wpbeginner.com/wp-tutorials/how-to-add-an-admin-user-to-the-wordpress-database-via-mysql/

Thanks but why you link to a spammy commercial site with pop ups?