Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://dam.iuav.it/iuav/containers/EZnXWWA/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-b376b603-4e6a-401b-9382-6f52b9b3de51",
      "cw-8b5ba4f3-f01e-490a-9bb3-507b3151c505"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-1856439f-d56f-4673-9cac-e3e9b066c397",
    "manifestId": "https://dam.iuav.it/iuav/containers/EZnXWWA/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-8b5ba4f3-f01e-490a-9bb3-507b3151c505"
  }
}