Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://zenodo.org/api/iiif/record:952226/manifest",
    "isFetching": false
  },
  "viewer": null,
  "window": {
    "canvasId": "https://zenodo.org/api/iiif/record:952226/canvas/oo_28403.jpg",
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-560f5470-b549-4969-bb38-924590c05dd5",
      "cw-4a53d38f-295f-4dfb-b683-842bba8eb529"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": true,
    "id": "window-2c797bf7-12b2-435d-bbc9-b8e33eab40e0",
    "manifestId": "https://zenodo.org/api/iiif/record:952226/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-4a53d38f-295f-4dfb-b683-842bba8eb529",
    "thumbnailNavigationPosition": "far-right",
    "visibleCanvases": []
  }
}