Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://dam.iuav.it/iuav/containers/2vRzwNv/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-84c4b2da-852e-498b-b503-c87c9ac5a74a",
      "cw-9ffd8f7d-1001-4b2f-a300-4b6d362f2347"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-3e0602c9-6b84-443b-8c6d-052db21bb918",
    "manifestId": "https://dam.iuav.it/iuav/containers/2vRzwNv/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-9ffd8f7d-1001-4b2f-a300-4b6d362f2347"
  }
}