Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://dam-antenati.cultura.gov.it/antenati/containers/Lze7m9g/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-3d7c19f0-fe28-40d8-a213-6ad0f85d1e35",
      "cw-b15ee1d4-2fc5-4bf3-b63f-8c7e3a99c039"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "Lze7m9g",
    "manifestId": "https://dam-antenati.cultura.gov.it/antenati/containers/Lze7m9g/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-b15ee1d4-2fc5-4bf3-b63f-8c7e3a99c039",
    "imageToolsEnabled": true,
    "imageToolsOpen": true
  }
}