Bukkit

What steps will reproduce the problem?
1. Install NoLagg
2. Install RaceGames
3. Start a horse race of RaceGames

What is the expected output? What do you see instead?
Expected: The players freeze and stay frozen untill the counter is over. The players will unfreeze and they will be mounted on a horse.
What happens: The players stays frozen after the counter is over and they won't get a horse.

What version of the product are you using?
NoLagg-1.90.4 and RaceGames 4.2

Do you have an error log of what happened?
Yes, here:  http://pastebin.com/5HBwSwSc

Please provide any additional information below.
I am the plugin owner of RaceGames and I am wondering how to fix these errors. I get the: Synchronized code got accessed from another thread error. I use the following code to freeze the players when they move.

public void OnPlayerMove (PlayerMoveEvent event){
    Player player = event.getPlayer();
        speler.teleport(player);
}