Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://dam.iuav.it/iuav/containers/Ye0oMdA/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-32b54d0a-2eff-43c8-89b7-d5ff255e8de3",
      "cw-b6fa3b84-ee9a-45c2-8fed-d9470ce7a03c"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-bfc7963f-2698-4307-9c31-11c44eaceac4",
    "manifestId": "https://dam.iuav.it/iuav/containers/Ye0oMdA/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-b6fa3b84-ee9a-45c2-8fed-d9470ce7a03c"
  }
}