Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://iiif.quartexcollections.com/qstarter29/iiif/8a780363-b3bc-4410-b4df-1e59b5e93419/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-78e1261e-3f59-47a9-bfa5-f70daaefc8d1",
      "cw-fcdf1229-25ff-43b8-af26-e3f2392a0a58"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-07ffc6c9-69a2-456c-9d25-c3e99a3fe2e7",
    "manifestId": "https://iiif.quartexcollections.com/qstarter29/iiif/8a780363-b3bc-4410-b4df-1e59b5e93419/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-fcdf1229-25ff-43b8-af26-e3f2392a0a58",
    "thumbnailNavigationPosition": "far-bottom"
  }
}