Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://dam.iuav.it/iuav/containers/ZpwObPe/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-dfe7877d-60dd-4ca2-a747-7e8942bfe5a8",
      "cw-5a4ba06c-3ffb-4a8e-b44c-1d9572c8a01a"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-a6092e66-6355-492f-903a-420554248799",
    "manifestId": "https://dam.iuav.it/iuav/containers/ZpwObPe/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-5a4ba06c-3ffb-4a8e-b44c-1d9572c8a01a"
  }
}