Cannot stream data audio

[yuniara]

While I try to stream a video file to a receiver , i've got this message in sender :

mux_ts debug: adding input codec=wma2 pid=69
main error: cannot add this stream
stream_out_duplicate debug: - failed for output 0
main error: cannot create packetizer output (wma2)
access_output_udp warning: putting two PCRs at once

How could I solve this problem ? thank you so much.