can not play streaming on player (video js, vlc player)

Wowza Streaming Engine
1

Hi

my trouble status is as below

(wowza version is 4.7.7)

encoder -> wowza server is ok ( incoming source is normal)

but can not play in plyaer(video js, vlc - hls streaming)

i use aws ec2 c9.5xlarge (elastic ip, streamlock url)

more than 2 years, streaming service has no problem, but suddenly i got trouble

please guide me

here is my error log

ERROR server comment 2020-04-01 05:21:40 - - - - - 3.453 - - - - - - - - Zero sized function (client:2038259963:FMLE/3.0): type:20 size:0:

WARN server comment 2020-04-01 05:21:40 - - - - - 3.453 - - - - - - - - TranscodingSession.handlePacket[live/definst]: Video codec is not supported by transcoder. Can only be used as PassThru: UNKNOWN[0]

WARN server comment 2020-04-01 06:44:25 - - - - - 136.101 - - - - - - - - Missing function: xsbwtest

2

The warning message gives you a hint: “Video codec is not supported by transcoder”, so check which video codec you’ve set up on the encoder. Maybe there’s been a change in your encoder setup lately? If not please specify which video codec and transport protocol you use to publish the stream.