Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://dam.iuav.it/iuav/containers/BeyqO4e/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-d437e19b-3973-49b8-8dae-3febe39a5ab6",
      "cw-811879b6-b2c0-4b6b-9d9c-64e63d4fc0fa"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-0a991416-82d8-48ab-b3c1-6468ad85450b",
    "manifestId": "https://dam.iuav.it/iuav/containers/BeyqO4e/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-811879b6-b2c0-4b6b-9d9c-64e63d4fc0fa"
  }
}