Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://iiif.quartexcollections.com/imb/iiif/99831344-bbc3-4473-ab3d-bdb85a23f7c0/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-d60658a1-ac33-4ed1-8af5-5cf3c2714f04",
      "cw-4e0eb5a8-704c-4329-be58-15da643aac0a"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-132ede78-8f05-436d-948b-ec24ae3eb5da",
    "manifestId": "https://iiif.quartexcollections.com/imb/iiif/99831344-bbc3-4473-ab3d-bdb85a23f7c0/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-4e0eb5a8-704c-4329-be58-15da643aac0a",
    "thumbnailNavigationPosition": "far-bottom"
  }
}