Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://dam.iuav.it/iuav/containers/vX552gA/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-38a646f8-29c9-413b-9b5c-c46c75a72607",
      "cw-6515c8ac-39af-4172-8fa2-a5ea73053d73"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-5d43775c-41b8-4517-ac76-7a6d20c99eb9",
    "manifestId": "https://dam.iuav.it/iuav/containers/vX552gA/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-6515c8ac-39af-4172-8fa2-a5ea73053d73"
  }
}