Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://dam.iuav.it/iuav/containers/AMjJ1ge/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-8fd9ec4c-4db7-4411-8936-f96aa3ba8516",
      "cw-327f1af0-8878-4a61-bb5a-a7ff44464821"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-8b7f34e5-d4ac-4a33-9666-dcc70c2c88b0",
    "manifestId": "https://dam.iuav.it/iuav/containers/AMjJ1ge/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-327f1af0-8878-4a61-bb5a-a7ff44464821"
  }
}