A TimThumb error has occured

The following error(s) occured:

Could not create the file cache directory.

Query String : src=http://gabrielrancourt.com/wp-content/uploads/2017/02/21-novembre-Inventiv-0273729_finale.jpg&h=0&w=1400&zc=0&ac=c&q=80
TimThumb version : 2.8.13