Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://dam.iuav.it/iuav/containers/vGEzwze/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-9902a029-5516-49be-a470-3beaa7aeac4f",
      "cw-02e2b81d-22d4-4351-9aa5-9847a1bb206c"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-82cf5981-101b-4091-9fee-0ad349e33ff6",
    "manifestId": "https://dam.iuav.it/iuav/containers/vGEzwze/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-02e2b81d-22d4-4351-9aa5-9847a1bb206c"
  }
}