A TimThumb error has occured

The following error(s) occured:

Could not find the internal image you specified.

Query String : src=/upload/resize_cache/iblock/297/800_600_1f88da2b4740de19584cdff1727090349/297376afa5419330635f11776e6d5c10.png&w=373&h=373&zc=2
TimThumb version : 2.8.11