Disable Join MSG's

Well, to completely delete the join message you need to do that:

Code (Text):

@EventHandler
public void onPlayerJoin(PlayerJoinEvent event) {
    event.setJoinMessage(null);
}

NB: Don't forget to register the event in your onEnable();

 

Get the plugin Skript and make a script as follows:

Code (Text):

on join:
    set join message to ""
 

 

Skript may not be loaded properly, or you may have an incorrect version. Try doing /skript reload all in-game and see if any errors pop up.

I'm assuming the picture is a blank line in chat?