Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://iiif.quartexcollections.com/sonomalibrary/iiif/a820262e-f5c4-4944-9c2c-b752bde6be61/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-2aadad17-e776-48d2-af1a-9cef4645962c",
      "cw-869adc04-df05-4fe8-b6dd-422061f6fc7f"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-ee4e11f8-bf91-4241-b64e-97ff00bb9a69",
    "manifestId": "https://iiif.quartexcollections.com/sonomalibrary/iiif/a820262e-f5c4-4944-9c2c-b752bde6be61/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-869adc04-df05-4fe8-b6dd-422061f6fc7f",
    "thumbnailNavigationPosition": "far-bottom"
  }
}