Since that page you are talking about and the person who made this page and has also a shop offering vampire transformations, let me tell you, that is purely that person's mythology based on their UPG.
So nobody else really shares that and you'd have to go to the source, aka the owner of that page, for more information about that Lucifera.
There he claims she's the firstborn of the creator, Jesus is a blasphemer, she's the goddess of the Elohim, who are gods, amongst them Lucifer and Lilith and more of that......fabricated(?) mythology.