Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://dam-antenati.cultura.gov.it/antenati/containers/04xQJqr/manifest",
    "isFetching": false
  },
  "viewer": null,
  "window": {
    "canvasId": "https://antenati.cultura.gov.it/ark:/12657/an_ua3497622/0AAXgRm",
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-7fc4b79f-675f-429f-94ca-5e5607d22503",
      "cw-34f782ab-24d7-4c0b-a000-bd547033f308"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-0790d0a1-5393-44eb-8881-a0e8572170ab",
    "manifestId": "https://dam-antenati.cultura.gov.it/antenati/containers/04xQJqr/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-34f782ab-24d7-4c0b-a000-bd547033f308",
    "imageToolsEnabled": true,
    "imageToolsOpen": true,
    "visibleCanvases": []
  }
}