Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://dam.iuav.it/iuav/containers/JvaE0Rv/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-e541fc2d-ab44-461c-b334-bd7a44fd4a3a",
      "cw-f748305a-44d9-4ea8-a4f3-ce8f77505e2c"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-72c8d576-0906-4b69-a607-2a6bf967b986",
    "manifestId": "https://dam.iuav.it/iuav/containers/JvaE0Rv/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-f748305a-44d9-4ea8-a4f3-ce8f77505e2c"
  }
}