Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://dam.iuav.it/iuav/containers/LvxpOwv/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-88e01de3-2eff-48bc-b5db-7954d8ce18c3",
      "cw-e72dbaeb-89b0-4295-9b23-f7e123dd35ab"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-c1475016-d00b-4ef9-a80d-fc8436999e27",
    "manifestId": "https://dam.iuav.it/iuav/containers/LvxpOwv/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-e72dbaeb-89b0-4295-9b23-f7e123dd35ab"
  }
}