The proxy server received an invalid
response from an upstream server.
The proxy server could not handle the request GET /dataset/dataset/2017-spawning-hake-stock-acoustic-trawl-survey-sh1701-ek80/resource/73f4f4f0-6de2-4b03-9d5b-874532c5a4dc.
Reason: DNS lookup failure for: os-data-catalog.ngdc.noaa.gov
Additionally, a 502 Bad Gateway error was encountered while trying to use an ErrorDocument to handle the request.