Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://zenodo.org/api/iiif/record:2720164/manifest",
    "isFetching": false
  },
  "viewer": null,
  "window": {
    "canvasId": "https://zenodo.org/api/iiif/record:2720164/canvas/BR0000011475217.jpg",
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-897b9d8e-c6fd-4a46-a4e3-482d75a58e90",
      "cw-9def7f5e-05a5-4655-b609-0c8cfe3ddca2"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": true,
    "id": "window-980eb070-e3a7-4cc3-a03b-83a9ed237ecf",
    "manifestId": "https://zenodo.org/api/iiif/record:2720164/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-9def7f5e-05a5-4655-b609-0c8cfe3ddca2",
    "thumbnailNavigationPosition": "far-right",
    "visibleCanvases": []
  }
}