Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://dam.iuav.it/iuav/containers/BeyqO4e/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-11f907ea-66ad-44a5-9851-de7d189d9599",
      "cw-4d39730b-51c8-4404-834e-f7000b8f2dbb"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-fb0499d0-bccd-46d7-a5a9-d43882403308",
    "manifestId": "https://dam.iuav.it/iuav/containers/BeyqO4e/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-4d39730b-51c8-4404-834e-f7000b8f2dbb"
  }
}