Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://iiif.quartexcollections.com/qstarter29/iiif/7cb0224e-f45f-46b9-a368-dec6d13ca113/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-0db559e1-3e4e-4a4b-b22b-c595c27369a4",
      "cw-b1e547a8-f420-4aa3-8257-9ab553d26929"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-9d5d6228-5417-4c2c-8574-e2726daa71c4",
    "manifestId": "https://iiif.quartexcollections.com/qstarter29/iiif/7cb0224e-f45f-46b9-a368-dec6d13ca113/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-b1e547a8-f420-4aa3-8257-9ab553d26929",
    "thumbnailNavigationPosition": "far-bottom"
  }
}