Yep it is a PHP application error.

My Nginx log now outputs this. I doing more digging to see why it is acting up.

2014/06/18 23:20:49 [error] 3792#7764: *22709 upstream timed out (10060: A connection attempt failed because the connected party did not properly respond after a period of time, or established connection failed because connected host has failed to respond) while reading response header from upstream, client: 10.71.9.108, server: domain.com, request: "GET /media-gallery/9329-video-2014-06-06-08-25-27.html HTTP/1.1", upstream: "fastcgi://127.0.0.1:9018", host: "www.domain.com", referrer: "http://www.domain.com/media-gallery.html?start=60"