Fixing mcrank reading from FFS when on SQL

src/main/java/com/gmail/nossr50/commands/mc/McrankCommand.java

@@ -20,6 +20,7 @@ public class McrankCommand implements CommandExecutor {
     @Override
     public boolean onCommand(CommandSender arg0, Command arg1, String arg2, String[] arg3) {
         //I'm being lazy and making this only work on yourself, I or someone else will make this work on other players in the future :D
+    	if(!Config.getInstance().getUseMySQL())
     		Leaderboard.updateLeaderboards(); //Make sure the information is up to date
 
         if(arg0 instanceof Player) {