A TimThumb error has occured

The following error(s) occured:

The remote file is not a valid image. Mimetype = ''E:\Website\Dvbcn\wp-content\themes\skin\cache\tim2ADB.tmp

Query String : h=124&src=https%3A%2F%2Fmp.toutiao.com%2Fmp%2Fagw%2Farticle_material%2Fopen_image%2Fget%3Fcode%3DNWY0YzViMjcyNDkzZTE3MDFmYzA5MDczOTZjOGE3ZjgsMTcxOTQ1OTIwODc2Mg%3D%3D&w=218&zc=1
TimThumb version : 2.8.13