Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://iiif.quartexcollections.com/hcpl/iiif/8497c24d-d3d8-4fb5-b3b0-50f315909f65/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-6e234d14-2f40-474d-be9b-b244ebd2e1c0",
      "cw-41a017da-a17a-40b0-8514-154263089c78"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-85035b1d-dee3-4be6-aa5d-da8856895508",
    "manifestId": "https://iiif.quartexcollections.com/hcpl/iiif/8497c24d-d3d8-4fb5-b3b0-50f315909f65/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-41a017da-a17a-40b0-8514-154263089c78",
    "thumbnailNavigationPosition": "far-bottom"
  }
}