Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://iiif.quartexcollections.com/qstarter29/iiif/661f0427-f4f4-4d71-a7b9-8e37e9c3ca74/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-58f2ab3f-c7a4-44b9-add7-45f6d4498d3d",
      "cw-f784a0ce-5b1d-4a57-9c00-30a2067ea0cb"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-8772e0e0-2122-4aca-8bc7-fbac813692d1",
    "manifestId": "https://iiif.quartexcollections.com/qstarter29/iiif/661f0427-f4f4-4d71-a7b9-8e37e9c3ca74/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-f784a0ce-5b1d-4a57-9c00-30a2067ea0cb",
    "thumbnailNavigationPosition": "far-bottom"
  }
}