Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://iiif.quartexcollections.com/desplaines/iiif/85d876f0-03b6-4486-8436-cef6f4de469a/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-7d19db2b-af7f-4031-84c0-f7dd41d721f0",
      "cw-9ae4ad24-e97d-4b78-8955-a96b9a101cbb"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-c164543d-46cf-40d2-80d3-a6a3e1e971f6",
    "manifestId": "https://iiif.quartexcollections.com/desplaines/iiif/85d876f0-03b6-4486-8436-cef6f4de469a/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-9ae4ad24-e97d-4b78-8955-a96b9a101cbb",
    "thumbnailNavigationPosition": "far-bottom"
  }
}