Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://dam.iuav.it/iuav/containers/2AKrYVv/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-915b9d23-a8a1-4b4f-bba9-ee1e5cb596db",
      "cw-b8e0f327-bb1a-44f7-a154-ea25cec68031"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-07d47353-e89c-49d7-af0e-28665f9c254f",
    "manifestId": "https://dam.iuav.it/iuav/containers/2AKrYVv/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-b8e0f327-bb1a-44f7-a154-ea25cec68031"
  }
}