Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://dam-girolamini.cultura.gov.it/girolamini/containers/b9njyM5/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-5f0d4bc2-5146-4f65-a730-de040cf1deef",
      "cw-aedb6761-7f1c-445e-8a38-5d0f76fd3076"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-7659e871-db91-4828-80b5-3c1d2a012428",
    "manifestId": "https://dam-girolamini.cultura.gov.it/girolamini/containers/b9njyM5/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-aedb6761-7f1c-445e-8a38-5d0f76fd3076"
  }
}