Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://zenodo.org/api/iiif/record:3988809/manifest",
    "isFetching": false
  },
  "viewer": null,
  "window": {
    "canvasId": "https://zenodo.org/api/iiif/record:3988809/canvas/big_440890.jpg",
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-39df4cd9-89b9-4d31-9645-dc823fa3c8f7",
      "cw-a1e07692-b22d-43b7-bdd2-bebf36729b61"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": true,
    "id": "window-7b7315b0-8945-437c-9978-a49e4947ec40",
    "manifestId": "https://zenodo.org/api/iiif/record:3988809/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-a1e07692-b22d-43b7-bdd2-bebf36729b61",
    "thumbnailNavigationPosition": "far-right",
    "visibleCanvases": []
  }
}