Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://dam.iuav.it/iuav/containers/Zq04yXe/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-ab2ee987-1673-476d-a90e-373c0f02bb68",
      "cw-69600bb5-f2f6-4244-8c79-128e1dc36c80"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-8a6fecc5-1881-41e1-a657-7d34832e5a08",
    "manifestId": "https://dam.iuav.it/iuav/containers/Zq04yXe/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-69600bb5-f2f6-4244-8c79-128e1dc36c80"
  }
}