You may not fetch images from that site. To enable this site in timthumb, you can either add it to $ALLOWED_SITES and set ALLOW_EXTERNAL=true. Or you can set ALLOW_ALL_EXTERNAL_SITES=true, depending on your security needs.
Query String: src=http%3A%2F%2Fxn----zmc2azfb75a3job2sd.artnails.ir%2Fimages%2Farezzzzz.jpg&w=90&h=64&zc=1 TimThumb version: 2.8.14 Instruction: Thumbnails don't work — what to do? (registration required)