Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://dam.iuav.it/iuav/containers/e9kDJdv/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-ee1a2c48-6d7b-419b-b0cb-2523882bda11",
      "cw-6fd7de3e-d2c5-4c3f-b93e-fa3b91b50d02"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-7b168961-83b9-4edb-bf02-049f78de2acd",
    "manifestId": "https://dam.iuav.it/iuav/containers/e9kDJdv/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-6fd7de3e-d2c5-4c3f-b93e-fa3b91b50d02"
  }
}