Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://dam.iuav.it/iuav/containers/A30dLpe/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-e93543ea-f96a-4394-bc19-598bf1b685e1",
      "cw-55da11c7-f7c0-409a-81c0-d236a17ddf30"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-fdf35ac7-0fb6-4855-b921-313278555f8d",
    "manifestId": "https://dam.iuav.it/iuav/containers/A30dLpe/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-55da11c7-f7c0-409a-81c0-d236a17ddf30"
  }
}