Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://dam-antenati.cultura.gov.it/antenati/containers/wWOqDDd/manifest",
    "isFetching": false
  },
  "viewer": null,
  "window": {
    "canvasId": "https://antenati.cultura.gov.it/ark:/12657/an_ua35030444/wlmajlY",
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-764d8087-afa2-4058-880f-2ec901fd6988",
      "cw-b08a91fd-4a8a-4246-a999-a331b568c048"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-f7576e79-b7c6-409d-9c82-85dedfd06911",
    "manifestId": "https://dam-antenati.cultura.gov.it/antenati/containers/wWOqDDd/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-b08a91fd-4a8a-4246-a999-a331b568c048",
    "imageToolsEnabled": true,
    "imageToolsOpen": true,
    "visibleCanvases": []
  }
}