TimThumb Error

The following error(s) occurred:

• Error reading the URL you specified from remote host.Could not resolve host: scontent-frt3-2.cdninstagram.com

Query String: src=https%3A%2F%2Fscontent-frt3-2.cdninstagram.com%2Fv%2Ft51.2885-15%2Fe35%2F79626787_2736788263009957_8866088498505324796_n.jpg%3F_nc_ht%3Dscontent-frt3-2.cdninstagram.com%26_nc_cat%3D101%26_nc_ohc%3DhAo2fYGurWUAX_v8Q8e%26oh%3D09474d9900c0d62aa57b5bdddac4b237%26oe%3D5E97F1B9&w=90&h=64&zc=1
TimThumb version: 2.8.14
Instruction: Thumbnails don't work — what to do? (registration required)