Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://dam.iuav.it/iuav/containers/e16KWxZ/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-8b807778-7fd3-466c-a2f1-cba77ea0c86a",
      "cw-8d265ab5-d798-4f84-97eb-4b2fa8cb4efa"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-e5e5cc5b-6cbb-4556-9bf0-ce5ebc5c8cf5",
    "manifestId": "https://dam.iuav.it/iuav/containers/e16KWxZ/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-8d265ab5-d798-4f84-97eb-4b2fa8cb4efa"
  }
}