Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://dam.iuav.it/iuav/containers/Zq01zQe/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-fe7cc7cd-5c2e-4d2a-aaea-3e9c310e075d",
      "cw-fb02c4fb-5687-44f0-9fdf-2f25f6cf5b21"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-f8365f79-bc37-451e-bd4d-b9561bb5c647",
    "manifestId": "https://dam.iuav.it/iuav/containers/Zq01zQe/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-fb02c4fb-5687-44f0-9fdf-2f25f6cf5b21"
  }
}