A TimThumb error has occured

The following error(s) occured:

Could not find the internal image you specified.

Query String : src=http://www.biblioasturias.com/wp-content/uploads/2011/12/Biblioasturias010-Luis-Sep%C3%BAlveda.jpg&w=340&h=192&zc=1&q=100
http://www.biblioasturias.com/wp-content/uploads/2011/12/Biblioasturias010-Luis-Sepúlveda.jpg
TimThumb version : 2.8