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_ua35030444/0AkVgEg",
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-6b5dab5a-fe3a-4aa2-9500-344f02f2cf6d",
      "cw-8a33cfa4-d786-4de6-bd99-338ba4969610"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-f7638ecc-e9a4-4512-a635-c41cc56d7645",
    "manifestId": "https://dam-antenati.cultura.gov.it/antenati/containers/wWOqDDd/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-8a33cfa4-d786-4de6-bd99-338ba4969610",
    "imageToolsEnabled": true,
    "imageToolsOpen": true,
    "visibleCanvases": []
  }
}