Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://dam.iuav.it/iuav/containers/XeWYrDv/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-4167c852-e27b-4dbc-8e2c-a526f1f156df",
      "cw-642ceabc-63ba-4072-a749-096eabcde572"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-f7e6968b-1960-4b8f-a6c2-ffddfc36e4ef",
    "manifestId": "https://dam.iuav.it/iuav/containers/XeWYrDv/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-642ceabc-63ba-4072-a749-096eabcde572"
  }
}