Reg: Audio not working for few partipants

For few of my participants i am getting an error . Video works and audio is not working . i see an error in jitsi log below . I am not sure on the same.

020-08-06 17:17:12.490 INFO: [309] org.jitsi.impl.protocol.xmpp.XmppPro$
Jicofo 2020-08-06 17:17:13.490 INFO: [309] org.jitsi.impl.protocol.xmpp.XmppPro$
$nalComponentManager.error() Broken pipe (Write failed)
at Method)
at sun.nio.cs.StreamEncoder.writeBytes(
at sun.nio.cs.StreamEncoder.implFlushBuffer(
at sun.nio.cs.StreamEncoder.implFlush(
at sun.nio.cs.StreamEncoder.flush(