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%2F3f5ea27925ea28f5d0bd1a54291963e4%2F5DB48F1E%2Ft51.2885-15%2Fe35%2F65911162_146641649729343_61356221869188831_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)