Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://dam-antenati.cultura.gov.it/antenati/containers/wbWOj9A/manifest",
    "isFetching": false
  },
  "viewer": null,
  "window": {
    "canvasId": "https://antenati.cultura.gov.it/ark:/12657/an_ua35046179/wX63qZO",
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-e619209e-9fbb-4ab6-b927-ccf37fafb7c2",
      "cw-3f543f38-0d70-457c-bf33-1a03573054cf"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-7d965999-0749-4df8-ac5a-dd4666677f36",
    "manifestId": "https://dam-antenati.cultura.gov.it/antenati/containers/wbWOj9A/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-3f543f38-0d70-457c-bf33-1a03573054cf",
    "imageToolsEnabled": true,
    "imageToolsOpen": true,
    "visibleCanvases": []
  }
}