Corrupted Music Store Song
If you're seeing this message, it means kJams had trouble downloading a song from the music store.
Don't worry! If the purchase was successful, you have received an email receipt.
Check your email and find that receipt. Inside you'll find a download link, from there you can download the song!
Be sure to move the downloaded song files to a permanent location (eg: not on the desktop, not in the downloads folder, and not in the KJams_Music_Folder kJams Music folder). I recommend you put it in a folder at the same location as your other music. Then, add it to your library, you should be all set!