Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://dam-antenati.cultura.gov.it/antenati/containers/wOn6gOl/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-f3307348-9f0c-4e74-858f-b291c23b1e59",
      "cw-06b2b0cc-5313-4129-a34f-f2848bcd460d"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "wOn6gOl",
    "manifestId": "https://dam-antenati.cultura.gov.it/antenati/containers/wOn6gOl/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-06b2b0cc-5313-4129-a34f-f2848bcd460d",
    "imageToolsEnabled": true,
    "imageToolsOpen": true
  }
}