Timer won't teleport the player



Hello everyone,
I've made a timer but when the timer is 0 the counter won't teleport a player from the list.
Can someone please help me?
Error log:
Code (Text):
  1. [17:13:49 WARN]: Exception in thread "Craft Scheduler Thread - 56"
  2. [17:13:49 WARN]: org.apache.commons.lang.UnhandledException: Plugin PixelDice v1.0 generated an exception while executin
  3. g task 96
  4. at org.bukkit.craftbukkit.v1_8_R3.scheduler.CraftAsyncTask.run(CraftAsyncTask.java:56)
  5. at...
Timer won't teleport the player