Notification Bundle containing an error state

{
  "resourceType": "Bundle",
  "id": "e2c9dc20-615e-4603-9005-74deb209cbb0",
  "type": "subscription-notification",
  "timestamp": "2020-04-17T10:24:13.1882432-05:00",
  "entry": [
    {
      "fullUrl": "urn:uuid:b21e4fae-ce73-45cb-8e37-1e203362b2ae",
      "resource": {
        "resourceType": "SubscriptionStatus",
        "id": "b21e4fae-ce73-45cb-8e37-1e203362b2ae",
        "text": {
          "status": "generated",
          "div": "<div xmlns=\"http://www.w3.org/1999/xhtml\"><p><b>Generated Narrative: SubscriptionStatus</b><a name=\"b21e4fae-ce73-45cb-8e37-1e203362b2ae\"> </a></p><div style=\"display: inline-block; background-color: #d9e0e7; padding: 6px; margin: 4px; border: 1px solid #8da1b4; border-radius: 5px; line-height: 60%\"><p style=\"margin-bottom: 0px\">Resource SubscriptionStatus &quot;b21e4fae-ce73-45cb-8e37-1e203362b2ae&quot; </p></div><p><b>status</b>: error</p><p><b>type</b>: event-notification</p><p><b>eventsSinceSubscriptionStart</b>: 328</p><h3>NotificationEvents</h3><table class=\"grid\"><tr><td>-</td><td><b>EventNumber</b></td><td><b>Timestamp</b></td></tr><tr><td>*</td><td>328</td><td>18/04/2020 1:20:00 AM</td></tr></table><p><b>subscription</b>: <a href=\"todo.html\">http://example.org/FHIR/R5/Subscription/123</a></p><p><b>topic</b>: <a href=\"http://example.org/FHIR/R5/SubscriptionTopic/admission\">http://example.org/FHIR/R5/SubscriptionTopic/admission</a></p><p><b>error</b>: No response <span style=\"background: LightGoldenRodYellow; margin: 4px; border: 1px solid khaki\"> (<a href=\"http://terminology.hl7.org/3.1.0/CodeSystem-subscription-error.html\">Subscription Error Codes</a>#no-response)</span></p></div>"
        },
        "status": "error",
        "type": "event-notification",
        "eventsSinceSubscriptionStart": "328",
        "notificationEvent": [
          {
            "eventNumber": "328",
            "timestamp": "2020-04-17T10:20:00.0000000-05:00"
          }
        ],
        "subscription": {
          "reference": "http://example.org/FHIR/R5/Subscription/123"
        },
        "topic": "http://example.org/FHIR/R5/SubscriptionTopic/admission",
        "error": [
          {
            "coding": [
              {
                "system": "http://terminology.hl7.org/CodeSystem/subscription-error",
                "code": "no-response"
              }
            ]
          }
        ]
      }
    }
  ]
}