Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://dam-antenati.cultura.gov.it/antenati/containers/wlzAnPW/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-a2e6d5a2-9e46-47ad-b6c6-51c1f4afcf75",
      "cw-d009571a-c8d5-457d-b265-19d1360d2341"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "wlzAnPW",
    "manifestId": "https://dam-antenati.cultura.gov.it/antenati/containers/wlzAnPW/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-d009571a-c8d5-457d-b265-19d1360d2341",
    "imageToolsEnabled": true,
    "imageToolsOpen": true
  }
}