Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://dam.iuav.it/iuav/containers/vdxyyQv/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-779f62da-2f18-4ac8-a876-979f0a8888af",
      "cw-abfb2eb7-9fef-4abc-9d10-13a67132b756"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-43f4b398-4b74-4670-89b9-5d51e5c94262",
    "manifestId": "https://dam.iuav.it/iuav/containers/vdxyyQv/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-abfb2eb7-9fef-4abc-9d10-13a67132b756"
  }
}