youtube error 401 3

https://8cy8djp8at.readspirex.com/posts/how-to-control-access-to-a-private-youtube-video-a-guide-for-publishers

If you're seeing YouTube error 401, it usually means there's an authentication problem—your login token might have expired or become invalid, especially if you use multiple Google accounts. Try signing out completely, clearing your browser's cache and cookies, then signing back in. On mobile apps, updating or reinstalling often fixes it. Just make sure your internet connection is stable and your account is in good standing.