Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://dam.iuav.it/iuav/containers/vLE1WYA/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-5f17df73-3f9f-4e83-bc84-67f37c4793b1",
      "cw-57f49d37-17d3-43bf-b859-655d60c6619c"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-95c588c2-4ae9-4431-a205-d02cc0e892a5",
    "manifestId": "https://dam.iuav.it/iuav/containers/vLE1WYA/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-57f49d37-17d3-43bf-b859-655d60c6619c"
  }
}