Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://dam.iuav.it/iuav/containers/voYag3e/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-47543b34-f3d0-4606-a1a1-46020016dfea",
      "cw-6866d0bc-38dc-4c30-a6c9-da04fb517a5c"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-7b9e205c-02e1-4c04-8e0a-cfdb19220c6b",
    "manifestId": "https://dam.iuav.it/iuav/containers/voYag3e/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-6866d0bc-38dc-4c30-a6c9-da04fb517a5c"
  }
}