Hey Gatikrushna Rath (Consultant)
Thanks for posting the question and QandA platform.
the message you are getting is -The meeting lobby is full right now. Please try again in a few minutes
but The meeting organizer is the one who set the limit, so you will need to confirm with him regarding this. as he is the only person who can modify the limit.
If this helps kindly accept the answer thanks much. .