Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://dam.iuav.it/iuav/containers/AJKwp2e/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-6b3aaab1-ce3d-4487-8632-523fb70ab22a",
      "cw-7180108e-004e-4dab-87fd-904355cce43a"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-98a855f1-9eba-4269-a944-5067ac41b7a4",
    "manifestId": "https://dam.iuav.it/iuav/containers/AJKwp2e/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-7180108e-004e-4dab-87fd-904355cce43a"
  }
}