Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://dam.iuav.it/iuav/containers/voY5mke/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-42be1b54-9773-451a-9b66-dcad55b3f79d",
      "cw-da5005d8-f690-405e-b4a2-fd518a5f8d77"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-4e40bdd9-b890-4fc8-ab0d-7807f50d7f28",
    "manifestId": "https://dam.iuav.it/iuav/containers/voY5mke/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-da5005d8-f690-405e-b4a2-fd518a5f8d77"
  }
}