A TimThumb error has occured

The following error(s) occured:

The image being resized is not a valid gif, jpg or png.

Query String : src=..%2Fimages%2Furunler%2Fhoroz-20w-ledli-aplik-beyaz-kasa-beyaz-isik-siva-ustu-aydos-20-2573_2.jpg&w=400&zc=2
TimThumb version : 2.8.14