Node.js MaxListener error

I have “MaxListenersExceededWarning: Possible EventEmitter memory leak detected. 11 guildMemberAdd listeners added. Use emitter.setMaxListeners() to increase limit” error. What should i do?

Can we have a look at your code? You may have inefficient code.

Which one of my codes? Main file?

Probably server.js. Also the error message in the log will probably return something like TypeError: (error msg) at /server.js 119:8 or something.
Best if you can share the entire project link.