Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://dam-antenati.cultura.gov.it/antenati/containers/LaWqoyk/manifest",
    "isFetching": false
  },
  "viewer": null,
  "window": {
    "canvasId": "https://antenati.cultura.gov.it/ark:/12657/an_ua35040465/wWOq3VB",
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-5fb85edb-b14f-4351-b23c-a22c16ecf235",
      "cw-bd9e127e-ddc0-455f-b369-bcb1e893cdc1"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-41b3b651-e2ef-4eeb-b4de-81e1f3a4708a",
    "manifestId": "https://dam-antenati.cultura.gov.it/antenati/containers/LaWqoyk/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-bd9e127e-ddc0-455f-b369-bcb1e893cdc1",
    "imageToolsEnabled": true,
    "imageToolsOpen": true,
    "visibleCanvases": []
  }
}