Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://dam-girolamini.cultura.gov.it/girolamini/containers/ByGn46b/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-c4869efb-2f6a-4114-9157-d2129ddecf6a",
      "cw-a543cebd-392b-4f0f-9cdd-02cfbca45fba"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-252e7cb3-9b4f-4b3d-a23b-02b3e8e0713b",
    "manifestId": "https://dam-girolamini.cultura.gov.it/girolamini/containers/ByGn46b/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-a543cebd-392b-4f0f-9cdd-02cfbca45fba"
  }
}