Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://dam-antenati.cultura.gov.it/antenati/containers/0MejNe6/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-25b7a4ad-76c2-46a7-add2-53ee36dc4c86",
      "cw-2fb51543-1620-4f16-92fe-a5f73ecb2d62"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "0MejNe6",
    "manifestId": "https://dam-antenati.cultura.gov.it/antenati/containers/0MejNe6/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-2fb51543-1620-4f16-92fe-a5f73ecb2d62",
    "imageToolsEnabled": true,
    "imageToolsOpen": true
  }
}