Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://dam.iuav.it/iuav/containers/9AJkOxe/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-03d45f1e-ef0f-407c-ad5d-ae2f967db088",
      "cw-d7b1330b-6da4-4cc1-9517-0185834b8a1a"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-f4962001-e523-472d-8f20-c50e7c3b2119",
    "manifestId": "https://dam.iuav.it/iuav/containers/9AJkOxe/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-d7b1330b-6da4-4cc1-9517-0185834b8a1a"
  }
}