Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://dam.iuav.it/iuav/containers/7AzNwXA/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-2d8e52cb-44bf-40ba-8093-e6d88687acf8",
      "cw-03c955d0-1d28-43e9-b1e1-31fe3bda8e0e"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-98a5a7a5-e057-4714-883f-363b32daeb58",
    "manifestId": "https://dam.iuav.it/iuav/containers/7AzNwXA/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-03c955d0-1d28-43e9-b1e1-31fe3bda8e0e"
  }
}