TimThumb Error

The following error(s) occurred:

• Error reading the URL you specified from remote host.Could not resolve host: scontent-frx5-1.cdninstagram.com

Query String: src=https%3A%2F%2Fscontent-frx5-1.cdninstagram.com%2Fvp%2Fcec3eb61662bbbcdf4b598c2c6742582%2F5E469122%2Ft51.2885-15%2Fe35%2F75256813_2489272171169259_8477663998376901663_n.jpg%3F_nc_ht%3Dscontent-frx5-1.cdninstagram.com%26_nc_cat%3D103&w=90&h=64&zc=1
TimThumb version: 2.8.14
Instruction: Thumbnails don't work — what to do? (registration required)