Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://dam-antenati.cultura.gov.it/antenati/containers/w9QEMqW/manifest",
    "isFetching": false
  },
  "viewer": null,
  "window": {
    "canvasId": "https://antenati.cultura.gov.it/ark:/12657/an_ua613885/wrAy6KJ",
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-2d436c12-ed97-488b-9beb-fa467e1d997a",
      "cw-a6d48503-4eab-4b24-8450-a6f0f8375ff2"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-02562579-7f92-4b4e-a1a1-af8d4dd5ef96",
    "manifestId": "https://dam-antenati.cultura.gov.it/antenati/containers/w9QEMqW/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-a6d48503-4eab-4b24-8450-a6f0f8375ff2",
    "imageToolsEnabled": true,
    "imageToolsOpen": true,
    "visibleCanvases": []
  }
}