Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://dam-antenati.cultura.gov.it/antenati/containers/wQK2g4b/manifest",
    "isFetching": false
  },
  "viewer": null,
  "window": {
    "canvasId": "https://antenati.cultura.gov.it/ark:/12657/an_ua598762/w1BdY6y",
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-f5217794-9840-40f8-ab7d-d036a6a9f1ad",
      "cw-74993c61-7838-4603-a362-6a5c391715ac"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-3676b97f-27f3-4113-9136-322520e5ebe3",
    "manifestId": "https://dam-antenati.cultura.gov.it/antenati/containers/wQK2g4b/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-74993c61-7838-4603-a362-6a5c391715ac",
    "imageToolsEnabled": true,
    "imageToolsOpen": true,
    "visibleCanvases": []
  }
}