Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://dam.iuav.it/iuav/containers/QvPJr9e/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-ccb55820-b499-4978-af7e-89f61ca24270",
      "cw-3b91a412-3fa0-4d96-b70c-e42cb0f3471f"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-e38e1739-0a73-4d50-a646-c664e6c9d209",
    "manifestId": "https://dam.iuav.it/iuav/containers/QvPJr9e/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-3b91a412-3fa0-4d96-b70c-e42cb0f3471f"
  }
}