katello proxy ssl error

Hi,
i trying add first katello capsule. But with no luck. I always stuck with
this error bellow. I use katello 3.4.

  • Unable to communicate with the proxy: ERF12-2530
    [ProxyAPI::ProxyException]: Unable to detect features
    ([OpenSSL::SSL::SSLError]: SSL_connect returned=1 errno=0 state=SSLv3 read
    server session ticket A: tlsv1 alert un…) for proxy
    https://XXXXXX:9090/features
  • Please check the proxy is configured and running on the host.