Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://dam.iuav.it/iuav/containers/2AOj1bv/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-d3708f98-b18c-4e24-9361-c76203f94667",
      "cw-ff5cba8a-ca41-475f-b91e-e8039fad3f90"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-15a41659-aba4-4f25-ac82-9b69b1d3bde2",
    "manifestId": "https://dam.iuav.it/iuav/containers/2AOj1bv/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-ff5cba8a-ca41-475f-b91e-e8039fad3f90"
  }
}