Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://dam.iuav.it/iuav/containers/e9kJ0dv/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-fd7a4b76-4473-4d5c-83a6-b0e6afbaa7d6",
      "cw-ee80cd88-274d-4479-9559-414e1b19fb92"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-f97731f4-96f9-4683-8b4c-4ce9136cb9b7",
    "manifestId": "https://dam.iuav.it/iuav/containers/e9kJ0dv/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-ee80cd88-274d-4479-9559-414e1b19fb92"
  }
}