Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://dam.iuav.it/iuav/containers/AOKRxbA/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-1e27f373-394d-4f36-aa26-d18c41f3ef20",
      "cw-2f29ea64-b851-4af7-8e5f-fec8b428b654"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-39a00aa9-e574-43e5-8adf-eaa7689d4ac8",
    "manifestId": "https://dam.iuav.it/iuav/containers/AOKRxbA/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-2f29ea64-b851-4af7-8e5f-fec8b428b654"
  }
}