If you look at rtorrent(I know it's not the same as utorrent, but I assume it's a general torrent problem) description of the problem:
Error: Could not parse bencoded data
This message is caused by bad communication with the tracker, often caused by invalid client authentication (passkey, IP address, etc.)
Which means the guy who created the torrent screwed it up or the tracker he used is having difficulties.
Writing the error message exactly as it appears would also help a lot more that the garbage you wrote.