Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://dam.iuav.it/iuav/containers/EZnXzwA/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-e184d340-54c9-41b6-803b-b93b1f74a12f",
      "cw-e90ab1df-3a72-4fe8-b59f-51bd0f03db15"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-ec0ea6fc-a6b0-4490-b7e7-9c1748598579",
    "manifestId": "https://dam.iuav.it/iuav/containers/EZnXzwA/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-e90ab1df-3a72-4fe8-b59f-51bd0f03db15"
  }
}