Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://dam.iuav.it/iuav/containers/vxBKY3e/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-ad0ecf36-4c96-4ff5-bd23-66afee688f79",
      "cw-3bdedc21-9fff-44c5-b63a-8540a3ea5a95"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-a4532d61-7be5-4b00-bf71-303361981082",
    "manifestId": "https://dam.iuav.it/iuav/containers/vxBKY3e/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-3bdedc21-9fff-44c5-b63a-8540a3ea5a95"
  }
}