Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://dam.iuav.it/iuav/containers/XeWmDKv/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-2a49cec6-c508-4ab8-8655-883e818b2c31",
      "cw-6bd411dd-2f6c-4e9a-9127-5c8c77349df9"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-082c84ab-3cb4-45f7-aba2-6b2b2354d8e9",
    "manifestId": "https://dam.iuav.it/iuav/containers/XeWmDKv/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-6bd411dd-2f6c-4e9a-9127-5c8c77349df9"
  }
}