Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://dam.iuav.it/iuav/containers/be9qgne/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-ad60392e-b34e-4437-8a6f-fe38b02656f5",
      "cw-f0bc59c7-1828-46ff-b3ec-298b67e0cc6f"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-051532bf-5e96-40c0-8354-b0dd112b2466",
    "manifestId": "https://dam.iuav.it/iuav/containers/be9qgne/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-f0bc59c7-1828-46ff-b3ec-298b67e0cc6f"
  }
}