Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://dam.iuav.it/iuav/containers/wArg0pe/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-cbd99cd9-df7d-4036-835a-0b9839f2092b",
      "cw-3b8bd00c-6d09-403a-afee-f1c55cbd70ac"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-6fafe642-cb62-4c14-909a-810240a328ab",
    "manifestId": "https://dam.iuav.it/iuav/containers/wArg0pe/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-3b8bd00c-6d09-403a-afee-f1c55cbd70ac"
  }
}