Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://dam.iuav.it/iuav/containers/WvdOJMZ/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-6b9de8c9-e7f9-4cb7-a345-7e122f9ef9f5",
      "cw-bab134f4-9714-4085-8b5d-e27566a2042f"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-2eb3f0cb-83d0-4c54-b2b7-93ca8affd593",
    "manifestId": "https://dam.iuav.it/iuav/containers/WvdOJMZ/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-bab134f4-9714-4085-8b5d-e27566a2042f"
  }
}