The proxy server received an invalid
response from an upstream server.
The proxy server could not handle the request GET /dataset/activity/crcp-prey-choice-of-corallivorous-snails-and-enhanced-susceptibility-to-predation-in-corals-of-.
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.