Hi Lindamaybe2013
I can see the same on my website. I had resolved it.
Open file “very-simple-splash-page/includes/splash-page.php
in “function splash_page() {…”
You have to change the domain
I do like this:
this line added
$domain = ($_SERVER['HTTP_HOST'] != 'localhost') ? $_SERVER['HTTP_HOST'] : false;
this line modified
setCookie( $this->cookie_name, time(), $this->cookie_expiration,'/',$domain,false );
Even, you have to check the setcookie php documentation on the web
Idealy, you have to write a little plugin to do it, to not make change directly in the very-simple-splash-page folder, because on the next plugin MAJ, your changes will be deleted.
Let me know if it works