TimThumb Error

The following error(s) occurred:

• Error reading the URL you specified from remote host.Could not resolve host: scontent-frt3-1.cdninstagram.com

Query String: src=https%3A%2F%2Fscontent-frt3-1.cdninstagram.com%2Fv%2Ft51.2885-15%2Fe35%2Fs1080x1080%2F73398063_167206727695448_6700101907518879559_n.jpg%3F_nc_ht%3Dscontent-frt3-1.cdninstagram.com%26_nc_cat%3D108%26_nc_ohc%3DS1jxzzpvKawAX-GeXrp%26oh%3D898f8d56211cc36984ecaa6ff7fbc086%26oe%3D5EB39D4B&w=90&h=64&zc=1
TimThumb version: 2.8.14
Instruction: Thumbnails don't work — what to do? (registration required)