Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://dam.iuav.it/iuav/containers/AJKaOLe/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-63313e20-983a-4c4a-9594-c57fd6d59e80",
      "cw-7fa47435-2012-45b7-95e0-f9134388ce5d"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-1e1ad4d5-e24a-4c97-9119-0ad1b5c3823e",
    "manifestId": "https://dam.iuav.it/iuav/containers/AJKaOLe/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-7fa47435-2012-45b7-95e0-f9134388ce5d"
  }
}