Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://dam.iuav.it/iuav/containers/9AJzldA/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-b1e131d7-c648-48b3-a072-8c7a99030798",
      "cw-68e463da-e429-4b82-bcef-3c4b07319b9b"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-f17527af-c184-4e96-b163-3d390a0d4d25",
    "manifestId": "https://dam.iuav.it/iuav/containers/9AJzldA/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-68e463da-e429-4b82-bcef-3c4b07319b9b"
  }
}