Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://dam-antenati.cultura.gov.it/antenati/containers/wQkMMdJ/manifest",
    "isFetching": false
  },
  "viewer": null,
  "window": {
    "canvasId": "https://antenati.cultura.gov.it/ark:/12657/an_ua17826933/0AmAAe9",
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-14066603-2f58-4793-9354-6ecc3378ba9f",
      "cw-86da9809-cf6c-4cf9-90b6-c62839331c60"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-3fc15497-11eb-475e-b7c9-b3ab25ccf7a6",
    "manifestId": "https://dam-antenati.cultura.gov.it/antenati/containers/wQkMMdJ/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-86da9809-cf6c-4cf9-90b6-c62839331c60",
    "imageToolsEnabled": true,
    "imageToolsOpen": true,
    "visibleCanvases": []
  }
}