Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://dam-antenati.cultura.gov.it/antenati/containers/04PWzQR/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-d6ba2903-c6a9-446d-ab05-f2169a687131",
      "cw-071ae9e7-4623-454e-b269-a220e6a1e871"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "04PWzQR",
    "manifestId": "https://dam-antenati.cultura.gov.it/antenati/containers/04PWzQR/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-071ae9e7-4623-454e-b269-a220e6a1e871",
    "imageToolsEnabled": true,
    "imageToolsOpen": true
  }
}