Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://dam.iuav.it/iuav/containers/WvdBd5e/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-5798b09a-b353-41ad-8d8b-0f4cc2cd0f54",
      "cw-a5f8919f-4dd0-4ece-b75c-db134650804b"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-53b72b72-d9d9-44ac-b0f7-4ea9f0671e2c",
    "manifestId": "https://dam.iuav.it/iuav/containers/WvdBd5e/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-a5f8919f-4dd0-4ece-b75c-db134650804b"
  }
}