Error downloading to RTMP

[snypercopyright]

Good night, someone could help me please?
I need to download a video to study and I'm not getting:
http://www.alfaconcursos.com.br/curs..._superior.html

Of this error:
ERROR: rtmp server sent error
ERROR: rtmp server requested close

rtmpdump -r "rtmps://51a59b8396b9d.streamlock.net/alfaconcursos2s" -a "alfaconcursos2s" -W "http://www.alfaconcursos.com.br/imagens/player/player_alfacon.swf" -y "mp4:200/evandro_guedes/dir_adm/eg_dir_adm_00001.mp4" -o direito_administrativo/encontro1/eg_dir_adm_00001.mp4 --live -T "5bead039555e3046e491864eaa333914"

Thank you!