Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://dam.iuav.it/iuav/containers/Lvx5ErA/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-bef0f95b-b8a0-4f84-a152-707eb59977f9",
      "cw-36419f66-ae33-4326-9d65-b0ce9a2eb58b"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-24de3d61-86fa-45e0-af0f-766a7cef9aa7",
    "manifestId": "https://dam.iuav.it/iuav/containers/Lvx5ErA/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-36419f66-ae33-4326-9d65-b0ce9a2eb58b"
  }
}