Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://dam-antenati.cultura.gov.it/antenati/containers/5xzX4nW/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-6ac83f0c-204b-430a-9db3-188fa2b68d09",
      "cw-48a4ed0a-b3ca-402b-9916-7548a6ffb3ca"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "5xzX4nW",
    "manifestId": "https://dam-antenati.cultura.gov.it/antenati/containers/5xzX4nW/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-48a4ed0a-b3ca-402b-9916-7548a6ffb3ca",
    "imageToolsEnabled": true,
    "imageToolsOpen": true
  }
}