Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://dam-girolamini.cultura.gov.it/girolamini/containers/By2Qy7a/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-5bc42ed1-57ad-4e29-99d0-86c4b0c31f02",
      "cw-961b0c82-0ac8-4786-b7ec-314366963c79"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-68abd9bf-7036-4bc3-936b-f5d3b0b49e84",
    "manifestId": "https://dam-girolamini.cultura.gov.it/girolamini/containers/By2Qy7a/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-961b0c82-0ac8-4786-b7ec-314366963c79"
  }
}