How do i get rid of seeing [5. Cosmos] channel?

[dolbonics]

in my general message feed i keep getting every single [5. Cosmos] message. It is most annoying!!! Everybody's name that comes up say their name and then <CL>. I dont want to know about that or care. Please help me by explaining how to turn it off so i only have channels 1-4 like normal. I dont even know how it got turned on.

Thanks :(

[Stephie-chu]

Type in /leave #.

Seeing how yours is 5, type in "/leave 5".

You can do that with any channel! XD