Hello, i'm currently developing on a tablist prefix plugin, that will show the pex group the playee is in. My problem is, say for example: I'm making admin prefix so i write: if(player.hasPermission("server.admin"), then make the prefix admin. But i can't get this permission to work. I wrote it into the plugin.yml and the pex permission.yml, but nothing appears in the tablist. How can I solve this problem?