Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://zenodo.org/api/iiif/record:6355864/manifest",
    "isFetching": false
  },
  "viewer": null,
  "window": {
    "canvasId": "https://zenodo.org/api/iiif/record:6355864/canvas/big_626253.jpg",
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-b635c6c9-383f-495b-be5a-d707282b6d83",
      "cw-68eb2ced-21af-45e3-a63d-09a8af4e3cf8"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": true,
    "id": "window-47166bfb-4fa8-4f89-aad8-13df52ed1848",
    "manifestId": "https://zenodo.org/api/iiif/record:6355864/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-68eb2ced-21af-45e3-a63d-09a8af4e3cf8",
    "thumbnailNavigationPosition": "far-right",
    "visibleCanvases": []
  }
}