Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://dam.iuav.it/iuav/containers/voYDjRe/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-9ba63ea7-8d4f-47ad-a9c7-912bc090c9d6",
      "cw-df8936cb-1a23-4898-89df-a704482730da"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-ec75fb0c-1ba6-490f-9211-9c78a17f67d2",
    "manifestId": "https://dam.iuav.it/iuav/containers/voYDjRe/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-df8936cb-1a23-4898-89df-a704482730da"
  }
}