Pi-hole Admin Page Configuration Fix
Go to /var/www/html on the Pi-hole and replace the contents of index.lighttpd.html with what's below. Make a backup of index.lighttpd.html.
<!DOCTYPE html>
<head>
<meta http-equiv="refresh" content="0;url=/admin">
</head>
<body>
<p>Redirect: <a href="/admin">Admin Page</a></p>
</body>This will allow you to type in the Pi-Hole servers ip address and be redirected straight to the Pihole Admin Login Page