things:acl.notfound

{
  "topic": "unknown/unknown/things/twin/errors",
  "headers": {},
  "path": "/",
  "value": {
    "status": 404,
    "error": "things:acl.notfound",
    "message": "The ACL Entry for the Authorization Subject 'the_acl_subject' on the Thing with ID 'com.acme:xdk_53' could not be found.",
    "description": "Check if the ID of the Thing and the authorized subject of your request was correct."
  },
  "status": 404
}