Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://dam-antenati.cultura.gov.it/antenati/containers/0ZWbOXm/manifest",
    "isFetching": false
  },
  "viewer": null,
  "window": {
    "canvasId": "https://antenati.cultura.gov.it/ark:/12657/an_ua34986711/LDAv91B",
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-24314d78-1147-4573-a4f8-ceca2174bb53",
      "cw-bdd0656f-c1ae-4d24-9983-3df3d4b25d25"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-fe87560f-b465-45cc-bec0-df0bd4a623e9",
    "manifestId": "https://dam-antenati.cultura.gov.it/antenati/containers/0ZWbOXm/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-bdd0656f-c1ae-4d24-9983-3df3d4b25d25",
    "imageToolsEnabled": true,
    "imageToolsOpen": true,
    "visibleCanvases": []
  }
}