Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://dam.iuav.it/iuav/containers/9AJXWDZ/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-bd53b30c-faca-4068-b8fc-6f808da29775",
      "cw-8738854c-63b3-4250-ad49-e5b437b4ebe7"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-6cea97fd-9b64-469c-ae18-0542df405388",
    "manifestId": "https://dam.iuav.it/iuav/containers/9AJXWDZ/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-8738854c-63b3-4250-ad49-e5b437b4ebe7"
  }
}