Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://zenodo.org/api/iiif/record:4248424/manifest",
    "isFetching": false
  },
  "viewer": null,
  "window": {
    "canvasId": "https://zenodo.org/api/iiif/record:4248424/canvas/big_468646.jpg",
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-a986418d-9eea-44fc-938d-0b1938bb4be7",
      "cw-f194bfa2-d844-4198-99ed-17466ff8d4a0"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": true,
    "id": "window-f7e9ec2c-df41-4761-8902-737da34acd56",
    "manifestId": "https://zenodo.org/api/iiif/record:4248424/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-f194bfa2-d844-4198-99ed-17466ff8d4a0",
    "thumbnailNavigationPosition": "far-right",
    "visibleCanvases": []
  }
}