Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://dam.iuav.it/iuav/containers/Pe1dLaA/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-73dd27fe-9225-4e2f-82ad-f663669fb494",
      "cw-57b71d04-5942-421b-ad4d-2db4d176f2dc"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-8f002db5-7832-45a8-981f-ff76f46b12d9",
    "manifestId": "https://dam.iuav.it/iuav/containers/Pe1dLaA/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-57b71d04-5942-421b-ad4d-2db4d176f2dc"
  }
}