Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://zenodo.org/api/iiif/record:4023457/manifest",
    "isFetching": false
  },
  "viewer": null,
  "window": {
    "canvasId": "https://zenodo.org/api/iiif/record:4023457/canvas/oo_437950.png",
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-841b24d3-5cad-4554-a2b0-685711dd2af5",
      "cw-2bf54487-c3b3-4281-abdd-5281df6dc057"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": true,
    "id": "window-b7c3166c-6273-4424-aab8-c57743f636c9",
    "manifestId": "https://zenodo.org/api/iiif/record:4023457/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-2bf54487-c3b3-4281-abdd-5281df6dc057",
    "thumbnailNavigationPosition": "far-right",
    "visibleCanvases": []
  }
}