Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://dam-antenati.cultura.gov.it/antenati/containers/5YKznDg/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-386a8423-e28d-44e6-8025-acb4450d60fc",
      "cw-8c5f200d-63de-4e62-9cf2-c78016b3b338"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "5YKznDg",
    "manifestId": "https://dam-antenati.cultura.gov.it/antenati/containers/5YKznDg/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-8c5f200d-63de-4e62-9cf2-c78016b3b338",
    "imageToolsEnabled": true,
    "imageToolsOpen": true
  }
}