Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://dam-antenati.cultura.gov.it/antenati/containers/LyR9maV/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-284d3e44-591f-4b77-89e7-2d7fa9b71fff",
      "cw-73f79344-2491-4d04-9317-baf5740e73b8"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "LyR9maV",
    "manifestId": "https://dam-antenati.cultura.gov.it/antenati/containers/LyR9maV/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-73f79344-2491-4d04-9317-baf5740e73b8",
    "imageToolsEnabled": true,
    "imageToolsOpen": true
  }
}