Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://dam.iuav.it/iuav/containers/AJKqkDe/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-1589ef24-a62e-4b5d-b4d3-6f19fb89f2cf",
      "cw-6240760b-dfd8-431d-83c9-2c3edf9d5a16"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-04f7bfab-8dbb-4bfc-99c9-538945c62453",
    "manifestId": "https://dam.iuav.it/iuav/containers/AJKqkDe/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-6240760b-dfd8-431d-83c9-2c3edf9d5a16"
  }
}