Bukkit

Spigot 1.11.2 Stable until I added an Absence Rewards. Now occasionally throws this:

[OnTime] Plugin OnTime v4.1.4 generated an exception while executing task 2347
java.lang.NullPointerException
        at me.edge209.OnTime.Rewards.Rewards.processAbsenceRewards(Rewards.java:
2287) ~[?:?]
        at me.edge209.OnTime.TodayTime$1.run(TodayTime.java:458) ~[?:?]
        at org.bukkit.craftbukkit.v1_11_R1.scheduler.CraftTask.run(CraftTask.jav
a:71) ~[spigot-1.11.2.jar:git-Spigot-d276ab1-d219213]
        at org.bukkit.craftbukkit.v1_11_R1.scheduler.CraftAsyncTask.run(CraftAsy
ncTask.java:52) [spigot-1.11.2.jar:git-Spigot-d276ab1-d219213]
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.
java:1142) [?:1.8.0_121]
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor
.java:617) [?:1.8.0_121]
        at java.lang.Thread.run(Thread.java:745) [?:1.8.0_121]

Anyone have an idea? This is happening every night, and the Absense Reward does not seem to be firing.

Could really use a clue here. Thanks!