Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://dam-antenati.cultura.gov.it/antenati/containers/LPxgMoB/manifest",
    "isFetching": false
  },
  "viewer": null,
  "window": {
    "canvasId": "https://antenati.cultura.gov.it/ark:/12657/an_ua35046274/w6xkzoO",
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-e11f242d-0087-4215-87fb-52a39754d824",
      "cw-311fcbbe-22b5-4208-b9e4-e93e2fb6a11d"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-36742f25-4560-4129-8f7d-d790d6bfba0b",
    "manifestId": "https://dam-antenati.cultura.gov.it/antenati/containers/LPxgMoB/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-311fcbbe-22b5-4208-b9e4-e93e2fb6a11d",
    "imageToolsEnabled": true,
    "imageToolsOpen": true,
    "visibleCanvases": []
  }
}