Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://dam-antenati.cultura.gov.it/antenati/containers/LaWqoyk/manifest",
    "isFetching": false
  },
  "viewer": null,
  "window": {
    "canvasId": "https://antenati.cultura.gov.it/ark:/12657/an_ua35040465/wWOq3VB",
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-e6d3c63f-ef67-4ed2-a677-0337e3be37d3",
      "cw-a0795c62-2710-4820-b6a4-f1593940d5be"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-b5972067-d613-43b9-b060-63f9af879e25",
    "manifestId": "https://dam-antenati.cultura.gov.it/antenati/containers/LaWqoyk/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-a0795c62-2710-4820-b6a4-f1593940d5be",
    "imageToolsEnabled": true,
    "imageToolsOpen": true,
    "visibleCanvases": []
  }
}