Fixes #9427 - Return meaningful errors from subnets/freeip and parse the error response to the UI
(cherry picked from commit b9521a8dc7f4e61a011cabbfdfe78657bd3c24d2)
Fixes #9427 - Return meaningful errors from subnets/freeip and parse the error response to the UI
(cherry picked from commit b9521a8dc7f4e61a011cabbfdfe78657bd3c24d2)