Looks like we dropped the ball on this one. This is an issue with Wikimedia server and we’ve just notified our team about it.
Error Code: 500 Internal server error
Request GET http://en.wikipedia.org from 212.247.189.111 via knsq.wikipedia.org
(squid.stable) ERR_CANNOT_FORWARD Resource temporarly unavailable on
December 04, 2014 9:26 GMT