Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://dam.iuav.it/iuav/containers/e0Ba5bv/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-4b8851bf-f7c8-4899-8e1d-5b7dc4d4fa8f",
      "cw-cdc5ff82-51cc-480f-b15d-a8199fe7ddfa"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-5a8c58ed-d85b-46f6-8246-a18931bde1fa",
    "manifestId": "https://dam.iuav.it/iuav/containers/e0Ba5bv/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-cdc5ff82-51cc-480f-b15d-a8199fe7ddfa"
  }
}