It's not that they are private, it's that they are deleted videos. That site only indexed videos that were posted to YouTube. Once they are removed, there is no getting them back unless someone archieved it themselves.
-The content MUST be from TikTok, do not post slips from other platforms.
-You MUST include profile names / link to the profile, or make every attempt to include it.
-Include timestamps if you post a long video or a full live video.
-Make sure ALL girls posted are 18+