Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://dam.iuav.it/iuav/containers/Bey0mdA/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-e6f0d586-8643-4ac2-8a8e-e255748b9977",
      "cw-c298a66f-a204-4536-b857-8cb8510ce3e8"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-a38cd4aa-18f6-4b86-bbae-ce134c9467d2",
    "manifestId": "https://dam.iuav.it/iuav/containers/Bey0mdA/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-c298a66f-a204-4536-b857-8cb8510ce3e8"
  }
}