Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://dam.iuav.it/iuav/containers/vDWOzQZ/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-3a6e8f01-3111-4d91-a582-8f4d53a967ce",
      "cw-760210ad-7b58-4a3c-af9e-65f9d4cf831b"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-38905bd7-14d5-4cf7-9b76-94ca62ef2881",
    "manifestId": "https://dam.iuav.it/iuav/containers/vDWOzQZ/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-760210ad-7b58-4a3c-af9e-65f9d4cf831b"
  }
}