The proxy server received an invalid
response from an upstream server.
The proxy server could not handle the request GET /dataset/noaa-enc-direct-to-gis/resource/a9fe7df7-d3ff-4b47-b0c2-169a75a27bcf.
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.