Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://dam.iuav.it/iuav/containers/e16K4PZ/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-dfc9485b-56a9-4c34-a28b-722b73706547",
      "cw-ccc64323-af68-41ad-941d-4acfa339b6f7"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-30c85319-7240-4b55-8332-0474d3f4a996",
    "manifestId": "https://dam.iuav.it/iuav/containers/e16K4PZ/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-ccc64323-af68-41ad-941d-4acfa339b6f7"
  }
}