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/LPKP1aW",
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-cdcdc541-2643-4213-bf8b-765044dde36a",
      "cw-f77451dd-e2d0-4265-8703-0f1081437f4c"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-346111ce-ef28-4656-b803-5819830f7b39",
    "manifestId": "https://dam-antenati.cultura.gov.it/antenati/containers/wXKGzNV/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-f77451dd-e2d0-4265-8703-0f1081437f4c",
    "imageToolsEnabled": true,
    "imageToolsOpen": true,
    "visibleCanvases": []
  }
}