Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://iiif.quartexcollections.com/imb/iiif/efca8e4d-97a3-4895-9fe6-49959ca1f081/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-6013f115-b67b-4d7a-a719-c427090103a2",
      "cw-83eee4fa-678c-484b-a0b8-b862cd877c60"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-a93062b7-f44b-4d73-b5d0-80fe536a85dd",
    "manifestId": "https://iiif.quartexcollections.com/imb/iiif/efca8e4d-97a3-4895-9fe6-49959ca1f081/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-83eee4fa-678c-484b-a0b8-b862cd877c60",
    "thumbnailNavigationPosition": "far-bottom"
  }
}