Coloca assim:
@EventHandler
void onCommand(PlayerCommandPreprocessEvent e) {
Player p = e.getPlayer();
if (!p.hasPermission("chain.bypass")) {
if (plugin.getConfig().getBoolean("BloquearComandos.Ativar")) {
if (plugin.getConfig().getStringList("BloquearComandos.Comandos").contains(e.getMessage().toLowerCase())) {
e.setCancelled(true);
p.sendMessage(plugin.getConfig().getString("BloquearComandos.Mensagem").replace("&", "§")
.replace("@p", CmdSpawns.pr).replace("@cmd", e.getMessage()));
}
}
}
}