Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://dam-antenati.cultura.gov.it/antenati/containers/wQkMMdJ/manifest",
    "isFetching": false
  },
  "viewer": null,
  "window": {
    "canvasId": "https://antenati.cultura.gov.it/ark:/12657/an_ua17826933/LyOqqle",
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-25cf4582-07d9-49c1-b58f-a6e2578867aa",
      "cw-f279dd3e-38b1-4042-a629-0b7260133193"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-d5ef6625-b226-4043-bd11-cac30f172fc7",
    "manifestId": "https://dam-antenati.cultura.gov.it/antenati/containers/wQkMMdJ/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-f279dd3e-38b1-4042-a629-0b7260133193",
    "imageToolsEnabled": true,
    "imageToolsOpen": true,
    "visibleCanvases": []
  }
}