Multiple iframe error

Can anyone explain why this is not working? If i only use Portainer it works, soon as i add a second iframe (AdGuard) i got errors.

panel_iframe:
  portainer:
    title: Portainer
    icon: mdi:docker
    url: 192.168.0.5:9000
  AdGuard:
    title: AdGuard
    icon: mdi:shield-check
    url: 192.168.0.5/#

Fixed. For some reason name AdGuard is not accepted, adguard works fine.