Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://iiif.quartexcollections.com/imb/iiif/a86dab23-b037-4177-a468-741ad2145327/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-27af1f6f-b154-43ae-8750-0e95678b51ec",
      "cw-37551eb6-5a93-444f-ad5d-d4a54c814e11"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-36474308-8d7e-4b1e-a293-70dba0b3b457",
    "manifestId": "https://iiif.quartexcollections.com/imb/iiif/a86dab23-b037-4177-a468-741ad2145327/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-37551eb6-5a93-444f-ad5d-d4a54c814e11",
    "thumbnailNavigationPosition": "far-bottom"
  }
}