Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://dam.iuav.it/iuav/containers/e0B8M5v/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-0d0ecff3-01d2-42ab-ae4d-d1653e8ef33c",
      "cw-d47eee1f-7dea-4728-afe9-a9de4099fb96"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-26bd4080-2363-4951-9943-1fb37936029a",
    "manifestId": "https://dam.iuav.it/iuav/containers/e0B8M5v/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-d47eee1f-7dea-4728-afe9-a9de4099fb96"
  }
}