[U2Lynne]

Sometimes if you look at the logs, it will give you a more complete description of the error. I'm not sure what BitTornado will do with filenames that have commas in them, but there is a file with a comma in the name and I wouldn't be surprised if that is what is making it puke. You could try telling it not to download the md5 file and see if that fixes the problem. You could also try either restarting bittornado, or else restarting your computer. And if none of those things work, you may want to try a bittorrent client that could care less about commas like utorrent or Azureus.