Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://dam.iuav.it/iuav/containers/3ZpORle/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-f051061c-3f07-4650-bf3c-93b2a3593ab6",
      "cw-6175bff4-2b0d-4ede-a268-87796707f890"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-d808581b-7958-4e51-a53e-23d36d700f43",
    "manifestId": "https://dam.iuav.it/iuav/containers/3ZpORle/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-6175bff4-2b0d-4ede-a268-87796707f890"
  }
}