view private youtube 3

https://echo-wiki.win/index.php/How_to_Address_the_%27Video_Not_Available%27_Error_on_YouTube_and_Embedded_Players

Sometimes a YouTube video is set to private, meaning only the uploader and their chosen viewers can watch. If you're trying to view a private YouTube video, you'll need to ask the owner to add your Google account to the video's sharing list. There's no other way in—private videos don't show up in search or on channels, and they can't be embedded elsewhere. It's a simple way to keep content exclusive.