Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://dam-antenati.cultura.gov.it/antenati/containers/5vyEDoK/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-41080db9-5cc6-4028-af3c-6b6e78e64fc4",
      "cw-8c644e08-2035-4615-92b8-54df3aba7467"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "5vyEDoK",
    "manifestId": "https://dam-antenati.cultura.gov.it/antenati/containers/5vyEDoK/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-8c644e08-2035-4615-92b8-54df3aba7467",
    "imageToolsEnabled": true,
    "imageToolsOpen": true
  }
}