Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://iiif.quartexcollections.com/hcpl/iiif/a4c243af-af32-4f57-9ba8-01004b342eaa/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-a80af4ea-5596-4b26-baff-9a8e6212b4be",
      "cw-dfd3f475-0b53-4a85-ab99-7151a869c94a"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-adb7dd27-2c89-42ea-8b4c-6c57b5572118",
    "manifestId": "https://iiif.quartexcollections.com/hcpl/iiif/a4c243af-af32-4f57-9ba8-01004b342eaa/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-dfd3f475-0b53-4a85-ab99-7151a869c94a",
    "thumbnailNavigationPosition": "far-bottom"
  }
}