Failed to listen on "tcp://0.0.0.0:8282": Address already in use

[ambujnmt]

Hi

I have followed whole process by cmd, server started running, authentication activated as well . but when i am trying to open in browser for chat start it's giving me error
An uncaught Exception was encountered Type: RuntimeException

Message: Failed to listen on "tcp://0.0.0.0:8282": Address already in use (EADDRINUSE)

Filename: /home/u773631995/domains/nmtdevserver.com/public_html/chat/vendor/react/socket/src/TcpServer.php

can you please check / suggest where i am doing wrong . This is url where i am testing https://nmtdevserver.com/chat/

i have also tried to open here https://nmtdevserver.com/chat/user/index/204 but no luck

can you please help me

Thanks