onClientEndpointMessage Error message

Hello everyone,

I was checking the jvb.log during a call with 27 people. I see alot of the following error messages:
WARNING: [1649] [confId=227071 epId=6563e6 gid=f8 stats_id=OAAA-UyG conf_name=meeting] AbstractEndpointMessageTransport.onClientEndpointMessage#219: Unable to find endpoint 255a5 to send EndpointMessage

EDIT: I also see these error in jicofo log:

Jicofo 2020-04-22 13:49:55.941 SEVERE: [29] org.jitsi.jicofo.SSRCValidator.log() Too many sources signalled by 6553e6 - dropping: ssrc=14428469
Jicofo 2020-04-22 13:49:55.957 WARNING: [29] org.jitsi.jicofo.JitsiMeetConferenceImpl.log() Not sending source-add, notification would be empty

Does anyone know if I need to worry about it? Can it be related to quality and connection issues?
Thanks
Tom