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_ua17826933/0nOxx7q",
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-d0676750-e8f1-42e0-b824-1d9ecb9240aa",
      "cw-b4c01866-6c01-4651-acbf-e75768a0e869"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-4f879d5b-3b42-48fe-b1b4-08bcb54036d2",
    "manifestId": "https://dam-antenati.cultura.gov.it/antenati/containers/wQkMMdJ/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-b4c01866-6c01-4651-acbf-e75768a0e869",
    "imageToolsEnabled": true,
    "imageToolsOpen": true,
    "visibleCanvases": []
  }
}