Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://dam.iuav.it/iuav/containers/AOKkwJA/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-2d2451b4-2f1e-458f-805e-c0ac87a27a93",
      "cw-6719609c-1a4d-4cce-b76f-550a8a56805f"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-033f7f00-b74f-4bbc-bbf8-7f35d81b9720",
    "manifestId": "https://dam.iuav.it/iuav/containers/AOKkwJA/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-6719609c-1a4d-4cce-b76f-550a8a56805f"
  }
}