Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://dam-antenati.cultura.gov.it/antenati/containers/wXKGzNV/manifest",
    "isFetching": false
  },
  "viewer": null,
  "window": {
    "canvasId": "https://antenati.cultura.gov.it/ark:/12657/an_ua600751/0ARZlJb",
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-5530d57e-e705-4007-b80b-499bc7c9534e",
      "cw-d362c59c-7f9f-4eb3-a142-a86ef150e7c9"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-f96e1a8c-a8f0-478c-acfc-42cde6625f0d",
    "manifestId": "https://dam-antenati.cultura.gov.it/antenati/containers/wXKGzNV/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-d362c59c-7f9f-4eb3-a142-a86ef150e7c9",
    "imageToolsEnabled": true,
    "imageToolsOpen": true,
    "visibleCanvases": []
  }
}