Error with https://javaee-support.ci.cloudbees.com/job/javaee7-pull-request-builder/

exception = HTTPSConnectionPool(host='javaee-support.ci.cloudbees.com', port=443): Max retries exceeded with url: /job/javaee7-pull-request-builder/ (Caused by NameResolutionError(": Failed to resolve 'javaee-support.ci.cloudbees.com' ([Errno -2] Name or service not known)"))