Web admin not accessible through https && Wireguard

General
3

I followed instructions of this topic: Enabling HTTPS for your Pi-hole Web Interface

So my /etc/lighttpd/external.conf is configured as well:

$HTTP["host"] == "domain.com" {
  # Ensure the Pi-hole Block Page knows that this is not a blocked domain
    setenv.add-environment = ("fqdn" => "true")

  # Enable the SSL engine with a LE cert, only for this specific host
  $SERVER["socket"] == ":1080" {
    ssl.engine = "enable"
    ssl.pemfile = "/etc/letsencrypt/live/domain.com/combined.pem"
    ssl.ca-file =  "/etc/letsencrypt/live/domain.com/fullchain.pem"
    ssl.honor-cipher-order = "enable"
    ssl.cipher-list = "EECDH+AESGCM:EDH+AESGCM:AES256+EECDH:AES256+EDH"
    ssl.use-sslv2 = "disable"
    ssl.use-sslv3 = "disable"       
  }

  # Redirect HTTP to HTTPS
  $HTTP["scheme"] == "http" {
    $HTTP["host"] =~ ".*" {
      url.redirect = (".*" => "https://%0$0")
    }
  }
}

I also moved the document root folder to /var/www/pihole/admin because I discovered that it was accessible to apache.