Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://dam-girolamini.cultura.gov.it/girolamini/containers/50J2Dqa/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-2ea27753-2eaa-4bcb-aac5-dcb6c4c50d9c",
      "cw-897127c3-c221-4aa7-95f8-e8e6bf3fec10"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-bf9804d0-48bd-4b65-a8aa-c8aa9e7ccfef",
    "manifestId": "https://dam-girolamini.cultura.gov.it/girolamini/containers/50J2Dqa/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-897127c3-c221-4aa7-95f8-e8e6bf3fec10"
  }
}