Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://dam.iuav.it/iuav/containers/eWnY0KA/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-065f02a8-1842-4096-b078-1faae84d315b",
      "cw-03b07e7c-a530-4c27-a8d8-d7ebf37adb04"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-af67743a-9e7b-476c-937a-ed8c39816f03",
    "manifestId": "https://dam.iuav.it/iuav/containers/eWnY0KA/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-03b07e7c-a530-4c27-a8d8-d7ebf37adb04"
  }
}