Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://zenodo.org/api/iiif/record:3945772/manifest",
    "isFetching": false
  },
  "viewer": null,
  "window": {
    "canvasId": "https://zenodo.org/api/iiif/record:3945772/canvas/big_429767.jpg",
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-fad1834a-7368-40c3-ae47-6dc6223e9b76",
      "cw-a9617680-125b-4f58-b878-328167c94dc5"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": true,
    "id": "window-074c36a3-f0a3-4caf-804b-21fa0c89e8e2",
    "manifestId": "https://zenodo.org/api/iiif/record:3945772/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-a9617680-125b-4f58-b878-328167c94dc5",
    "thumbnailNavigationPosition": "far-right",
    "visibleCanvases": []
  }
}