Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://dam.iuav.it/iuav/containers/AEPJpwv/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-19605d51-18f7-476a-9d54-4914e775b80f",
      "cw-b0c81cc8-dba7-4384-8643-39032d334c6b"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-5640da46-0ede-4130-bfab-92f2f8482277",
    "manifestId": "https://dam.iuav.it/iuav/containers/AEPJpwv/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-b0c81cc8-dba7-4384-8643-39032d334c6b"
  }
}