Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://dam.iuav.it/iuav/containers/9AJoQbe/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-50afa11a-b751-493e-bb4f-74195a8e59a3",
      "cw-4a8766fd-062f-41b9-848a-a8b56d636b31"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-1ef511d0-b9d6-4649-a251-e8a96bf3dfd2",
    "manifestId": "https://dam.iuav.it/iuav/containers/9AJoQbe/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-4a8766fd-062f-41b9-848a-a8b56d636b31"
  }
}