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_ua35040465/5vyJzOD",
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-f036a857-2145-4638-8171-12b1d724e2ce",
      "cw-3c2a31ca-c565-4411-8b2f-306f1e51b9a8"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-ccf605ad-5c9c-49bf-9249-d50e62a17fa1",
    "manifestId": "https://dam-antenati.cultura.gov.it/antenati/containers/LaWqoyk/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-3c2a31ca-c565-4411-8b2f-306f1e51b9a8",
    "imageToolsEnabled": true,
    "imageToolsOpen": true,
    "visibleCanvases": []
  }
}