A TimThumb error has occured

The following error(s) occured:

Could not find the internal image you specified.

Query String : src=http://www.kurs.com/images/kurs_upload/b19e32a0-0d4b-4c80-b5b3-e735c0907a8bjpg-149191778940.jpg&w=940&q=100&zc=3
TimThumb version : 2.8.14