Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://dam.iuav.it/iuav/containers/LvxKGjZ/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-f8485f9c-b7d3-496e-9fa7-64949ebcaee9",
      "cw-3ec60902-a01e-4788-8aec-db80ce0116a5"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-5e2592a0-14cd-44d9-bc15-dea5d51cfe10",
    "manifestId": "https://dam.iuav.it/iuav/containers/LvxKGjZ/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-3ec60902-a01e-4788-8aec-db80ce0116a5"
  }
}