Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://iiif.quartexcollections.com/qstarter29/iiif/f4d8c740-c2dd-479b-8b14-bed01676228e/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-3a434f99-4477-487f-844d-6ef93f54997d",
      "cw-25ff759e-4204-4ff3-a771-b6b53ec93e4b"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-2073b5fd-8e8e-4cb7-9902-49cd41956cf9",
    "manifestId": "https://iiif.quartexcollections.com/qstarter29/iiif/f4d8c740-c2dd-479b-8b14-bed01676228e/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-25ff759e-4204-4ff3-a771-b6b53ec93e4b",
    "thumbnailNavigationPosition": "far-bottom"
  }
}