Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://dam.iuav.it/iuav/containers/AEPOlRv/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-697e7687-c3c9-4eb8-9307-bab8c4046a52",
      "cw-d4b21097-2577-4a1b-aa9e-857ce8c0eada"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-17c1da35-dce1-4a93-b761-dbb1753725f4",
    "manifestId": "https://dam.iuav.it/iuav/containers/AEPOlRv/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-d4b21097-2577-4a1b-aa9e-857ce8c0eada"
  }
}