TimThumb Error

The following error(s) occurred:

• Cache file could not be loaded.

Query String: src=%2Fimages%2Feyelash%2Fphoto_2018-12-04_14-04-19.jpg&w=90&h=64&zc=1
TimThumb version: 2.8.14
Instruction: Thumbnails don't work — what to do? (registration required)