Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://iiif.quartexcollections.com/qstarter29/iiif/68ef3953-3801-4b80-9521-1c9009aa1942/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-16560aa9-3afc-4bde-97c6-d4beec330ffc",
      "cw-7d236ca4-db11-4a08-8cfb-d7b279eb01e2"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-70dcd6d9-e06c-417f-9e99-742dcdbc96c6",
    "manifestId": "https://iiif.quartexcollections.com/qstarter29/iiif/68ef3953-3801-4b80-9521-1c9009aa1942/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-7d236ca4-db11-4a08-8cfb-d7b279eb01e2",
    "thumbnailNavigationPosition": "far-bottom"
  }
}