Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://dam.iuav.it/iuav/containers/JvaYGov/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-6031a8e2-60d1-4f42-8df3-8c4321d4834b",
      "cw-6cbc06eb-7aeb-4ada-bb8f-a748a96d839d"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-10f7fb1f-4a17-40d0-9005-c1ac6898ec3d",
    "manifestId": "https://dam.iuav.it/iuav/containers/JvaYGov/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-6cbc06eb-7aeb-4ada-bb8f-a748a96d839d"
  }
}