https://youtu.be/BVzfD3Q0YQA
Absolutely ! You get “This video is unavailable” message, because this video is private! Now, please play above video. Whoooaa you can play private video on this website! Because EYPV – Embed Youtube Private Video WP Plugin you can do that! How it’s work? Just use really really simple shortcode!
[eypv id="BVzfD3Q0YQA"]
Where id attribute is your video id