Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://dam.iuav.it/iuav/containers/dZYKGpA/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-e5053e45-8238-41ca-b46f-8b9a8aee2945",
      "cw-c248f71a-ad8d-4ef7-b499-0afc14d60cd2"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-236d7a8d-c143-4002-9965-5282b19c074c",
    "manifestId": "https://dam.iuav.it/iuav/containers/dZYKGpA/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-c248f71a-ad8d-4ef7-b499-0afc14d60cd2"
  }
}