Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://dam-antenati.cultura.gov.it/antenati/containers/wlzy1xE/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-51638974-de09-467c-be20-7e2692951a14",
      "cw-9692ce33-9ba3-41e1-8f12-02431302ebf0"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "wlzy1xE",
    "manifestId": "https://dam-antenati.cultura.gov.it/antenati/containers/wlzy1xE/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-9692ce33-9ba3-41e1-8f12-02431302ebf0",
    "imageToolsEnabled": true,
    "imageToolsOpen": true
  }
}