[04:42:26] [Server thread/ERROR]: Could not pass event PlayerChangedWorldEvent to OnTime v4.1.3
org.bukkit.event.EventException
	at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:310) ~[spigot.jar:git-Spigot-6d16e64-bf4818b]
	at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62) ~[spigot.jar:git-Spigot-6d16e64-bf4818b]
	at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:502) [spigot.jar:git-Spigot-6d16e64-bf4818b]
	at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:487) [spigot.jar:git-Spigot-6d16e64-bf4818b]
	at net.minecraft.server.v1_8_R3.PlayerList.moveToWorld(PlayerList.java:628) [spigot.jar:git-Spigot-6d16e64-bf4818b]
	at org.bukkit.craftbukkit.v1_8_R3.entity.CraftPlayer.teleport(CraftPlayer.java:471) [spigot.jar:git-Spigot-6d16e64-bf4818b]
	at com.earth2me.essentials.Teleport.now(Teleport.java:126) [Essentials-2.x-SNAPSHOT.jar:?]
	at com.earth2me.essentials.Teleport.teleport(Teleport.java:194) [Essentials-2.x-SNAPSHOT.jar:?]
	at com.earth2me.essentials.Teleport.warp(Teleport.java:263) [Essentials-2.x-SNAPSHOT.jar:?]
	at com.earth2me.essentials.commands.Commandwarp.warpUser(Commandwarp.java:130) [Essentials-2.x-SNAPSHOT.jar:?]
	at com.earth2me.essentials.commands.Commandwarp.run(Commandwarp.java:51) [Essentials-2.x-SNAPSHOT.jar:?]
	at com.earth2me.essentials.commands.EssentialsCommand.run(EssentialsCommand.java:180) [Essentials-2.x-SNAPSHOT.jar:?]
	at com.earth2me.essentials.Essentials.onCommandEssentials(Essentials.java:527) [Essentials-2.x-SNAPSHOT.jar:?]
	at com.earth2me.essentials.Essentials.onCommand(Essentials.java:402) [Essentials-2.x-SNAPSHOT.jar:?]
	at org.bukkit.command.PluginCommand.execute(PluginCommand.java:44) [spigot.jar:git-Spigot-6d16e64-bf4818b]
	at org.bukkit.command.SimpleCommandMap.dispatch(SimpleCommandMap.java:141) [spigot.jar:git-Spigot-6d16e64-bf4818b]
	at org.bukkit.craftbukkit.v1_8_R3.CraftServer.dispatchCommand(CraftServer.java:640) [spigot.jar:git-Spigot-6d16e64-bf4818b]
	at net.minecraft.server.v1_8_R3.PlayerConnection.handleCommand(PlayerConnection.java:1135) [spigot.jar:git-Spigot-6d16e64-bf4818b]
	at net.minecraft.server.v1_8_R3.PlayerConnection.a(PlayerConnection.java:970) [spigot.jar:git-Spigot-6d16e64-bf4818b]
	at net.minecraft.server.v1_8_R3.PacketPlayInChat.a(PacketPlayInChat.java:45) [spigot.jar:git-Spigot-6d16e64-bf4818b]
	at net.minecraft.server.v1_8_R3.PacketPlayInChat.a(PacketPlayInChat.java:1) [spigot.jar:git-Spigot-6d16e64-bf4818b]
	at net.minecraft.server.v1_8_R3.PlayerConnectionUtils$1.run(SourceFile:13) [spigot.jar:git-Spigot-6d16e64-bf4818b]
	at java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source) [?:1.8.0_25]
	at java.util.concurrent.FutureTask.run(Unknown Source) [?:1.8.0_25]
	at net.minecraft.server.v1_8_R3.SystemUtils.a(SystemUtils.java:19) [spigot.jar:git-Spigot-6d16e64-bf4818b]
	at net.minecraft.server.v1_8_R3.MinecraftServer.B(MinecraftServer.java:714) [spigot.jar:git-Spigot-6d16e64-bf4818b]
	at net.minecraft.server.v1_8_R3.DedicatedServer.B(DedicatedServer.java:374) [spigot.jar:git-Spigot-6d16e64-bf4818b]
	at net.minecraft.server.v1_8_R3.MinecraftServer.A(MinecraftServer.java:653) [spigot.jar:git-Spigot-6d16e64-bf4818b]
	at net.minecraft.server.v1_8_R3.MinecraftServer.run(MinecraftServer.java:556) [spigot.jar:git-Spigot-6d16e64-bf4818b]
	at java.lang.Thread.run(Unknown Source) [?:1.8.0_25]
Caused by: java.lang.NullPointerException
	at me.edge209.OnTime.Rewards.Rewards.canReceiveReward(Rewards.java:1316) ~[?:?]
	at me.edge209.OnTime.Rewards.Rewards.scheduleNextReward(Rewards.java:1384) ~[?:?]
	at me.edge209.OnTime.PlayerEventListener._changeWorld(PlayerEventListener.java:409) ~[?:?]
	at me.edge209.OnTime.PlayerEventListener.onPlayerEvent(PlayerEventListener.java:349) ~[?:?]
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_25]
	at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) ~[?:1.8.0_25]
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) ~[?:1.8.0_25]
	at java.lang.reflect.Method.invoke(Unknown Source) ~[?:1.8.0_25]
	at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:306) ~[spigot.jar:git-Spigot-6d16e64-bf4818b]
	... 29 more