The game's page is still up:
https://christopher-laino-games.itch.io/paranormal-buddies
However, access has been restricted. From the page: "This game has been restricted by the author and can not be downloaded. The owner of the page must give permission to those they wish to access the page."
My best guess is the author is reworking things and will probably re-release it when bugs or other things are fixed.