Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://dam.iuav.it/iuav/containers/eWYkwjv/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-5b080411-6968-4c30-9e05-cc3f499e6793",
      "cw-0d1b4b55-b367-416d-bbc8-17d8846054a3"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-d4f952d7-5015-49b4-a47f-576484008e40",
    "manifestId": "https://dam.iuav.it/iuav/containers/eWYkwjv/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-0d1b4b55-b367-416d-bbc8-17d8846054a3"
  }
}