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-6d56e794-6de6-4949-bc77-e9c49f0d7c99",
      "cw-dfd4041d-91d7-49e4-9e63-062f2c2d9a2c"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-3ed041b1-cb23-4a67-8d51-9520a6a56e5f",
    "manifestId": "https://dam.iuav.it/iuav/containers/AJKq8We/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-dfd4041d-91d7-49e4-9e63-062f2c2d9a2c"
  }
}