Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://iiif.quartexcollections.com/qstarter29/iiif/8e848126-36f4-4360-b6ab-441fea6a8760/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-716604c4-e02d-46a0-abf3-3806c0192eb6",
      "cw-c573d5dc-05d1-4f07-8e42-3b68afe85972"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-be3ec7f5-3cc7-42dc-b791-40e448f5f585",
    "manifestId": "https://iiif.quartexcollections.com/qstarter29/iiif/8e848126-36f4-4360-b6ab-441fea6a8760/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-c573d5dc-05d1-4f07-8e42-3b68afe85972",
    "thumbnailNavigationPosition": "far-bottom"
  }
}