Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://dam.iuav.it/iuav/containers/2AKnKwv/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-650a6872-2037-4108-b98d-5be2b1c6bf43",
      "cw-567a9d5f-14ff-48dd-be33-4141d98e2b68"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-0a74935c-f808-43d2-94d0-bcfadec1402d",
    "manifestId": "https://dam.iuav.it/iuav/containers/2AKnKwv/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-567a9d5f-14ff-48dd-be33-4141d98e2b68"
  }
}