Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://dam.iuav.it/iuav/containers/AEPDBkv/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-4b3c4002-d1b0-4e77-a45d-a1d4e0aac0a8",
      "cw-6e28fd66-2820-43e8-8b5f-9a161f4e0363"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-180bf2a5-4fd8-4036-8ee4-4199c8c515a9",
    "manifestId": "https://dam.iuav.it/iuav/containers/AEPDBkv/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-6e28fd66-2820-43e8-8b5f-9a161f4e0363"
  }
}