The website (YouTube, etc.) changed its code. Free downloaders break frequently. Wait for the software to update, or switch to a web-based alternative.
Here are the steps:
That night, Mara added Jonas’s clip to a folder labeled "Remember." She burned a copy to a tiny USB and mailed it to an old address she still had for him, unsure if the letter would reach him or any trace of where he was. The package contained nothing more than the drive and a note: "For when you need to see where we once were." i 6buses video downloader free