Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://dam-girolamini.cultura.gov.it/girolamini/containers/B6eN3r5/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-707267b9-9e41-4ea1-9e29-467e868345ca",
      "cw-5d2533e0-829a-49dc-9e0c-4803420f01ab"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-077b6d80-422f-40fa-bc42-a6e5044de095",
    "manifestId": "https://dam-girolamini.cultura.gov.it/girolamini/containers/B6eN3r5/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-5d2533e0-829a-49dc-9e0c-4803420f01ab"
  }
}