17:36:45 [SEVERE] org.apache.commons.lang.UnhandledException: Plugin FishChecker
 v0.5 generated an exception while executing task 1437
        at org.bukkit.craftbukkit.v1_4_R1.scheduler.CraftAsyncTask.run(CraftAsyn
cTask.java:56)
        at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
        at java.lang.Thread.run(Unknown Source)
Caused by: java.lang.ClassCastException: java.lang.String cannot be cast to java
.lang.Long
        at com.modcrafting.fishchecker.FishChecker$1.run(FishChecker.java:72)
        at org.bukkit.craftbukkit.v1_4_R1.scheduler.CraftTask.run(CraftTask.java
:53)
        at org.bukkit.craftbukkit.v1_4_R1.scheduler.CraftAsyncTask.run(CraftAsyn
cTask.java:53)
        ... 3 more