Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://dam.iuav.it/iuav/containers/nv79pPe/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-025ab4db-1849-4ae5-abc4-c96b960ff344",
      "cw-b8356f8e-51de-4994-b2e7-59af1e731900"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-af82b95e-d63f-4241-bcca-034d58fe8472",
    "manifestId": "https://dam.iuav.it/iuav/containers/nv79pPe/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-b8356f8e-51de-4994-b2e7-59af1e731900"
  }
}