Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://iiif.quartexcollections.com/imb/iiif/99a67fd4-a212-42fc-8f92-7accd9201b9f/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-7748a41b-20df-4b69-9c18-959d4a7048bf",
      "cw-a96cba12-d6f8-478f-9f4b-c290947f470c"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-d2dde659-18d7-4c88-ba79-51644a930785",
    "manifestId": "https://iiif.quartexcollections.com/imb/iiif/99a67fd4-a212-42fc-8f92-7accd9201b9f/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-a96cba12-d6f8-478f-9f4b-c290947f470c",
    "thumbnailNavigationPosition": "far-bottom"
  }
}