Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://dam-antenati.cultura.gov.it/antenati/containers/57gzaPz/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-c1a62a89-0065-4d8b-8213-6ef7ce67b885",
      "cw-164a9235-e6e3-442c-b59f-73e20f5b4ec1"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "57gzaPz",
    "manifestId": "https://dam-antenati.cultura.gov.it/antenati/containers/57gzaPz/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-164a9235-e6e3-442c-b59f-73e20f5b4ec1",
    "imageToolsEnabled": true,
    "imageToolsOpen": true
  }
}