Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://dam-antenati.cultura.gov.it/antenati/containers/wWOqDDd/manifest",
    "isFetching": false
  },
  "viewer": null,
  "window": {
    "canvasId": "https://antenati.cultura.gov.it/ark:/12657/an_ua35030444/0nW8yNe",
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-5f9e86c1-fff9-4d4c-9acf-19d60df87a50",
      "cw-e8471ae4-96e0-42fd-968b-4481a637a11e"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-c62b35fe-5c70-47a7-b9e1-4bd4cbab767f",
    "manifestId": "https://dam-antenati.cultura.gov.it/antenati/containers/wWOqDDd/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-e8471ae4-96e0-42fd-968b-4481a637a11e",
    "imageToolsEnabled": true,
    "imageToolsOpen": true,
    "visibleCanvases": []
  }
}