Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://dam-antenati.cultura.gov.it/antenati/containers/LNXo1ry/manifest",
    "isFetching": false
  },
  "viewer": null,
  "window": {
    "canvasId": "https://antenati.cultura.gov.it/ark:/12657/an_ua34998352/wRq8N6Y",
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-3f9fe30c-25a6-4276-943c-454796db838c",
      "cw-f0fc9304-7081-4420-8595-5a6a68f80d4b"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-7bf240a1-55f1-480d-b98c-a3c3d5c0f54c",
    "manifestId": "https://dam-antenati.cultura.gov.it/antenati/containers/LNXo1ry/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-f0fc9304-7081-4420-8595-5a6a68f80d4b",
    "imageToolsEnabled": true,
    "imageToolsOpen": true,
    "visibleCanvases": []
  }
}