Why the magnetic link doesn't work on my torrent?
Hmm. Same problem here. On Google Chrome magnets don't work. Try mozilla or Internet Explorer.
Try to update uTorrent to its latest version because magnet links work just fine. When you click on a magnet link make sure to open it using uTorrent or else you will have problems activating the files next time when you want to download something.
Try to upload your utorrent app..are try out another browser