Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://dam.iuav.it/iuav/containers/e0B8qmv/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-79924964-c2ca-43ac-a650-84e3cbb1fe43",
      "cw-0a7b6ccc-f28f-4524-97aa-a42e7216e626"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-f2c4741f-9de8-43d7-ae72-ec7f26dfa3e7",
    "manifestId": "https://dam.iuav.it/iuav/containers/e0B8qmv/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-0a7b6ccc-f28f-4524-97aa-a42e7216e626"
  }
}