Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://dam.iuav.it/iuav/containers/Be5EYge/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-60ba9ba8-7a54-4d90-a73c-d8592897085c",
      "cw-a70fa938-e09d-4181-968b-0e18469f5a93"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-bb741268-a9a9-45a6-96c9-ca9347005316",
    "manifestId": "https://dam.iuav.it/iuav/containers/Be5EYge/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-a70fa938-e09d-4181-968b-0e18469f5a93"
  }
}