Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://dam-antenati.cultura.gov.it/antenati/containers/wrO386y/manifest",
    "isFetching": false
  },
  "viewer": null,
  "window": {
    "canvasId": "https://antenati.cultura.gov.it/ark:/12657/an_ua18236034/57YG4Zo",
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-af99c093-084d-4c1f-b58f-8cf86f07e673",
      "cw-5b1bd715-8a0c-474a-923e-f5b8284421c0"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-b7b640fa-131b-4a1d-85c8-0d494239b716",
    "manifestId": "https://dam-antenati.cultura.gov.it/antenati/containers/wrO386y/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-5b1bd715-8a0c-474a-923e-f5b8284421c0",
    "imageToolsEnabled": true,
    "imageToolsOpen": true,
    "visibleCanvases": []
  }
}