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%2F8c38406ea67278eeba1145140a1064bc%2F5D19C085%2Ft51.2885-15%2Fsh0.08%2Fe35%2Fc0.112.900.900%2Fs640x640%2F53673350_796898304009505_7178442801376771231_n.jpg%3F_nc_ht%3Dscontent-frx5-1.cdninstagram.com&w=90&h=64&zc=1
TimThumb version: 2.8.14
Instruction: Thumbnails don't work — what to do? (registration required)