Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://dam.iuav.it/iuav/containers/AB0RzOZ/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-14607b61-d66f-4377-8fa3-9cef14b26da2",
      "cw-98d3d202-d799-44a2-85a4-4d0c25e9a50d"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-53f99dc4-18e9-4ae0-87ab-e00c3348d430",
    "manifestId": "https://dam.iuav.it/iuav/containers/AB0RzOZ/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-98d3d202-d799-44a2-85a4-4d0c25e9a50d"
  }
}