Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://dam.iuav.it/iuav/containers/ZjlxzYA/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-e5b55d5b-ed80-4192-b46b-8b8e6151d098",
      "cw-329d48e9-140a-4b34-8caa-2ac2c83a038f"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-40bd618b-f141-459d-b16c-a899771d86f3",
    "manifestId": "https://dam.iuav.it/iuav/containers/ZjlxzYA/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-329d48e9-140a-4b34-8caa-2ac2c83a038f"
  }
}