Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://dam.iuav.it/iuav/containers/JvawYQe/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-da4714b7-3e92-4882-8b8c-94a360fbc25a",
      "cw-f1e4feac-8d90-4e92-95eb-2741aee7e8d4"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-828f1d7a-bea4-4c9c-81d7-f8df959449db",
    "manifestId": "https://dam.iuav.it/iuav/containers/JvawYQe/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-f1e4feac-8d90-4e92-95eb-2741aee7e8d4"
  }
}