Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://iiif.quartexcollections.com/hcpl/iiif/7ffffb3e-faab-4780-8054-0d63bc1f46a7/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-5b11196f-f217-470d-a89c-77b9bab4e9b3",
      "cw-f7a3a66d-4304-49b2-8e8d-a3d13a24626c"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-2571e396-c023-4d79-a1b4-ba8974281d12",
    "manifestId": "https://iiif.quartexcollections.com/hcpl/iiif/7ffffb3e-faab-4780-8054-0d63bc1f46a7/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-f7a3a66d-4304-49b2-8e8d-a3d13a24626c",
    "thumbnailNavigationPosition": "far-bottom"
  }
}