Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://dam.iuav.it/iuav/containers/e165WlZ/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-69fcc966-107f-45fe-b096-d3e19eddfe41",
      "cw-4b29ef70-c3cb-4fd8-8837-87f979bb0995"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-ec4ff44f-fff1-4f2a-a354-1652c0f0a348",
    "manifestId": "https://dam.iuav.it/iuav/containers/e165WlZ/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-4b29ef70-c3cb-4fd8-8837-87f979bb0995"
  }
}