Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://dam-antenati.cultura.gov.it/antenati/containers/LoJy6em/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-fe4683ed-9c1d-48d5-a65e-acf18d92adbc",
      "cw-a5c7efe5-2e26-438f-800f-fabc0e738157"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "LoJy6em",
    "manifestId": "https://dam-antenati.cultura.gov.it/antenati/containers/LoJy6em/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-a5c7efe5-2e26-438f-800f-fabc0e738157",
    "imageToolsEnabled": true,
    "imageToolsOpen": true
  }
}