Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://iiif.quartexcollections.com/hcpl/iiif/6fbf2429-46ec-4f15-9ef9-ad4e7ac5ceb3/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-87d2e280-58a9-42e4-8cb1-f4bbab418374",
      "cw-891db559-561c-4b58-a832-ddcd816b201d"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-f6fe1855-9103-4516-b064-719dec71f1b3",
    "manifestId": "https://iiif.quartexcollections.com/hcpl/iiif/6fbf2429-46ec-4f15-9ef9-ad4e7ac5ceb3/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-891db559-561c-4b58-a832-ddcd816b201d",
    "thumbnailNavigationPosition": "far-bottom"
  }
}