You need to unblock this content by setting your broser.
ブラウザーはこの内容をブロックしないように設定してください。

INFO:
Video and Audio Downloader PRO 2 software for YouTube – download your favorite YouTube videos as MP4 video or MP3 audio – compatible with Windows 11, 10, 8
Amazon.com: Video and Audio Downloader PRO 2 software for YouTube – download your favorite YouTube videos as MP4 video or MP3 audio – compatible with Windows 11, 10, 8