Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://dam-antenati.cultura.gov.it/antenati/containers/5Gnpo9E/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-9409c035-96ab-4f74-960a-86a9a0b03840",
      "cw-b5da33cd-cfbc-447d-a949-232e9c9a1070"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "5Gnpo9E",
    "manifestId": "https://dam-antenati.cultura.gov.it/antenati/containers/5Gnpo9E/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-b5da33cd-cfbc-447d-a949-232e9c9a1070",
    "imageToolsEnabled": true,
    "imageToolsOpen": true
  }
}