Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://dam.iuav.it/iuav/containers/vQnryMA/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-04adf933-7042-41b1-8e33-30c2adad9999",
      "cw-2cbcf4e2-3158-4a91-ab2f-2f9b10ffd471"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-a22f6cdb-66bd-4a45-8d04-00cfb1d1b8e0",
    "manifestId": "https://dam.iuav.it/iuav/containers/vQnryMA/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-2cbcf4e2-3158-4a91-ab2f-2f9b10ffd471"
  }
}