Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://iiif.quartexcollections.com/desplaines/iiif/c495d7f5-0bc1-4bea-b939-df77aaed4a01/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-0196d931-458a-4c0c-9621-69dff40bff25",
      "cw-dcd01e7c-6381-4feb-9fe0-a88125ff21f0"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-9c1f3942-b794-48ae-b9e0-4f2df55812fa",
    "manifestId": "https://iiif.quartexcollections.com/desplaines/iiif/c495d7f5-0bc1-4bea-b939-df77aaed4a01/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-dcd01e7c-6381-4feb-9fe0-a88125ff21f0",
    "thumbnailNavigationPosition": "far-bottom"
  }
}