A TimThumb error has occured

The following error(s) occured:

The remote file is not a valid image. Mimetype = 'text/html' File = /var/www/html/timthumb/cache/timthumbvJZL6w

Query String : h=150&w=250&zc=1&a=c&src=http://www.45nord.com/foto/bf84011369061fd7acf90dc0614451ededa26144.jpg
TimThumb version : 2.8.13