Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://dam.iuav.it/iuav/containers/AJKq8We/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-ad64ed35-f1f2-4f7a-a19c-a4201c0204f2",
      "cw-cc81585a-a249-49d6-8cb7-81b1ab88b7ca"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-03b842ea-b487-4150-8674-cd6ce06b7297",
    "manifestId": "https://dam.iuav.it/iuav/containers/AJKq8We/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-cc81585a-a249-49d6-8cb7-81b1ab88b7ca"
  }
}