A TimThumb error has occured

The following error(s) occured:

The remote file is not a valid image. Mimetype = ''/home/tehmusic/public_html/wp-content/cache/timthumb6l0hlc7m1oofeWTX6He

Query String : src=http://dl.teh-music.com/Music/Pic/Dorcci%20-%20PILE.jpg&h=60&w=60&zc=0
TimThumb version : 2.8.13