Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://zenodo.org/api/iiif/record:6673655/manifest",
    "isFetching": false
  },
  "viewer": null,
  "window": {
    "canvasId": "https://zenodo.org/api/iiif/record:6673655/canvas/overview.png",
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-674bda72-b318-4a16-a999-3b75889b4820",
      "cw-8a254139-4564-4ac8-b40e-78d8151a437e"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": true,
    "id": "window-7f7f1aec-1432-4e53-b607-64edb72f6ced",
    "manifestId": "https://zenodo.org/api/iiif/record:6673655/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-8a254139-4564-4ac8-b40e-78d8151a437e",
    "thumbnailNavigationPosition": "far-right",
    "visibleCanvases": []
  }
}