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%2Fv%2Ft51.2885-15%2Fsh0.08%2Fe35%2Fs750x750%2F70770849_126101985427644_827943487046522243_n.jpg%3F_nc_ht%3Dscontent-frx5-1.cdninstagram.com%26_nc_cat%3D100%26_nc_ohc%3D0u4IhdkslvcAX-iuWWI%26oh%3Ddbd7b488934c6422013c1c705acd6a97%26oe%3D5E9BE0CF&w=90&h=64&zc=1
TimThumb version: 2.8.14
Instruction: Thumbnails don't work — what to do? (registration required)