Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://zenodo.org/api/iiif/record:5304933/manifest",
    "isFetching": false
  },
  "viewer": null,
  "window": {
    "canvasId": "https://zenodo.org/api/iiif/record:5304933/canvas/figure.png",
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-d7822717-3e01-47a1-b163-a6d781bf50b5",
      "cw-f60503b4-9eaf-48ef-8ed0-65f08d2d03eb"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": true,
    "id": "window-20508b23-0df1-4257-bb04-de8790182d2f",
    "manifestId": "https://zenodo.org/api/iiif/record:5304933/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-f60503b4-9eaf-48ef-8ed0-65f08d2d03eb",
    "thumbnailNavigationPosition": "far-right",
    "visibleCanvases": []
  }
}