Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://dam.iuav.it/iuav/containers/Akrpl7v/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-21f22146-d42b-4412-bdac-a8928fbc9d44",
      "cw-ac8a286c-20f9-4ac5-b53c-f93ef01b635a"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-805192d3-9874-4ed6-975e-f82ff2bc8a88",
    "manifestId": "https://dam.iuav.it/iuav/containers/Akrpl7v/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-ac8a286c-20f9-4ac5-b53c-f93ef01b635a"
  }
}