Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://dam-antenati.cultura.gov.it/antenati/containers/0nZ9eqv/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-3247076a-be97-4d58-bab4-76844b87f884",
      "cw-3746c33f-a6ab-4a0d-8ed0-99121cf6b342"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "0nZ9eqv",
    "manifestId": "https://dam-antenati.cultura.gov.it/antenati/containers/0nZ9eqv/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-3746c33f-a6ab-4a0d-8ed0-99121cf6b342",
    "imageToolsEnabled": true,
    "imageToolsOpen": true
  }
}