Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://dam-antenati.cultura.gov.it/antenati/containers/wQK2g4b/manifest",
    "isFetching": false
  },
  "viewer": null,
  "window": {
    "canvasId": "https://antenati.cultura.gov.it/ark:/12657/an_ua598762/LzJWl9G",
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-c9ce3397-8b07-4705-8ccf-082d8d128953",
      "cw-c07f6f0b-560d-4f58-9cf8-31a5989ecaf8"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-31aeb80d-6b14-42d6-837a-ab9e6cb33397",
    "manifestId": "https://dam-antenati.cultura.gov.it/antenati/containers/wQK2g4b/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-c07f6f0b-560d-4f58-9cf8-31a5989ecaf8",
    "imageToolsEnabled": true,
    "imageToolsOpen": true,
    "visibleCanvases": []
  }
}