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%2F281e76a2e7fa961e09b1cd7862c53c25%2F5CE6DC12%2Ft51.2885-15%2Fe35%2F50981706_411182852983756_6578637921820712614_n.jpg%3F_nc_ht%3Dscontent-frx5-1.cdninstagram.com&w=246&h=150&zc=1
TimThumb version: 2.8.14
Instruction: Thumbnails don't work — what to do? (registration required)