Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://zenodo.org/api/iiif/record:4962906/manifest",
    "isFetching": false
  },
  "viewer": null,
  "window": {
    "canvasId": "https://zenodo.org/api/iiif/record:4962906/canvas/big_552982.jpg",
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-221a4278-a109-4739-b813-7598e7a2bf30",
      "cw-b397c06b-6667-4b41-bfb4-ee3fd2090a37"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": true,
    "id": "window-c9a62794-65da-4b21-9e29-30579eb1c7fd",
    "manifestId": "https://zenodo.org/api/iiif/record:4962906/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-b397c06b-6667-4b41-bfb4-ee3fd2090a37",
    "thumbnailNavigationPosition": "far-right",
    "visibleCanvases": []
  }
}