Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://dam.iuav.it/iuav/containers/e9kG5Wv/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-83311839-c82f-4b25-a46f-d40509244502",
      "cw-2a4d1a89-0ff7-4ef5-8c95-187be979a714"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-dbe069d0-1d65-48c6-9167-7143d86a62e4",
    "manifestId": "https://dam.iuav.it/iuav/containers/e9kG5Wv/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-2a4d1a89-0ff7-4ef5-8c95-187be979a714"
  }
}