Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://dam-girolamini.cultura.gov.it/girolamini/containers/ByGZWJb/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-ec8a69e5-14ab-4453-b0e6-d2919c9fa2d8",
      "cw-055959cd-ebcd-4744-a3fa-0ed4f6be912f"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-78b6ceff-9cc6-4d98-bda5-b24dd62d28b8",
    "manifestId": "https://dam-girolamini.cultura.gov.it/girolamini/containers/ByGZWJb/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-055959cd-ebcd-4744-a3fa-0ed4f6be912f"
  }
}