Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://dam-antenati.cultura.gov.it/antenati/containers/0ZWbOXm/manifest",
    "isFetching": false
  },
  "viewer": null,
  "window": {
    "canvasId": "https://antenati.cultura.gov.it/ark:/12657/an_ua34986711/LDAv91B",
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-33ab3a66-2e8f-4bfb-911e-9251a8a451fa",
      "cw-8d936800-967e-4db4-a22d-be0e160c2b06"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-0530054f-6b8f-4af6-a915-5ae6970821dd",
    "manifestId": "https://dam-antenati.cultura.gov.it/antenati/containers/0ZWbOXm/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-8d936800-967e-4db4-a22d-be0e160c2b06",
    "imageToolsEnabled": true,
    "imageToolsOpen": true,
    "visibleCanvases": []
  }
}