Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://dam.iuav.it/iuav/containers/GAmrRme/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-45a4e81e-cfac-4f11-b28a-9ee4fafab246",
      "cw-2f5fcd30-f5df-4072-b72c-4d7114c9943f"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-882d6815-7c58-4274-b1c6-29aa0fe5f25a",
    "manifestId": "https://dam.iuav.it/iuav/containers/GAmrRme/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-2f5fcd30-f5df-4072-b72c-4d7114c9943f"
  }
}