CMS TimThumb error has occured

The following error(s) occured:


Query String : src=images/gallery/imagine_photos-2012-03-13-RB-Bracciano-Custom-fireplace-gallery_display.jpg&width=600&height=600:images/gallery/imagine_photos-2012-03-13-RB-Bracciano-Custom-fireplace-gallery_display.jpg
TimThumb version : 2.8