Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://dam.iuav.it/iuav/containers/vQnD3YA/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-cc67d95e-c912-4227-a17f-710bbf818020",
      "cw-79185d08-4b29-4403-9503-56f38c5eb941"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-3074645e-9624-4c88-bec3-42290571e0fa",
    "manifestId": "https://dam.iuav.it/iuav/containers/vQnD3YA/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-79185d08-4b29-4403-9503-56f38c5eb941"
  }
}