SSL_connect returned=1 errno=0 state=SSLv3 read server certificate B: certificate verify failed

gistfile1.txt

C:\Users\vtypal\GitHub\MEGA.rb [master +0 ~2 -0]> ruby .\client.rb
C:/Ruby193/lib/ruby/1.9.1/net/http.rb:799:in `connect': SSL_connect returned=1 e
rrno=0 state=SSLv3 read server certificate B: certificate verify failed (OpenSSL
::SSL::SSLError)
        from C:/Ruby193/lib/ruby/1.9.1/net/http.rb:799:in `block in connect'
        from C:/Ruby193/lib/ruby/1.9.1/timeout.rb:54:in `timeout'
        from C:/Ruby193/lib/ruby/1.9.1/timeout.rb:99:in `timeout'
        from C:/Ruby193/lib/ruby/1.9.1/net/http.rb:799:in `connect'
        from C:/Ruby193/lib/ruby/1.9.1/net/http.rb:755:in `do_start'
        from C:/Ruby193/lib/ruby/1.9.1/net/http.rb:744:in `start'
        from C:/Ruby193/lib/ruby/1.9.1/net/http.rb:557:in `start'
        from C:/Users/etypaldos/VAG/GitHub/MEGA.rb/lib/mega/request.rb:34:in `ru
n'
        from C:/Users/etypaldos/VAG/GitHub/MEGA.rb/lib/mega/client.rb:11:in `get_sid'
        from ./client.rb:13:in `<main>'