[00:00:46 ERROR]: Could not pass event PlayerInteractEvent to bFactionsChestnew v1.0
org.bukkit.event.EventException
        at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:302) ~[spigot.jar:git-PaperSpigot-"3ebeccc"]
        at co.aikar.timings.TimedEventExecutor.execute(TimedEventExecutor.java:74) ~[spigot.jar:git-PaperSpigot-"3ebeccc"]
        at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62) ~[spigot.jar:git-PaperSpigot-"3ebeccc"]
        at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:501) [spigot.jar:git-PaperSpigot-"3ebeccc"]
        at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:486) [spigot.jar:git-PaperSpigot-"3ebeccc"]
        at org.bukkit.craftbukkit.v1_8_R3.event.CraftEventFactory.callPlayerInteractEvent(CraftEventFactory.java:228) [spigot.jar:git-PaperSpigot-"3ebeccc"]
        at net.minecraft.server.v1_8_R3.PlayerInteractManager.interact(PlayerInteractManager.java:463) [spigot.jar:git-PaperSpigot-"3ebeccc"]
        at net.minecraft.server.v1_8_R3.PlayerConnection.a(PlayerConnection.java:763) [spigot.jar:git-PaperSpigot-"3ebeccc"]
        at net.minecraft.server.v1_8_R3.PacketPlayInBlockPlace.a(PacketPlayInBlockPlace.java:52) [spigot.jar:git-PaperSpigot-"3ebeccc"]
        at net.minecraft.server.v1_8_R3.PacketPlayInBlockPlace.a(PacketPlayInBlockPlace.java:1) [spigot.jar:git-PaperSpigot-"3ebeccc"]
        at net.minecraft.server.v1_8_R3.PlayerConnectionUtils$1.run(SourceFile:13) [spigot.jar:git-PaperSpigot-"3ebeccc"]
        at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) [?:1.8.0_74]
        at java.util.concurrent.FutureTask.run(FutureTask.java:266) [?:1.8.0_74]
        at net.minecraft.server.v1_8_R3.SystemUtils.a(SourceFile:44) [spigot.jar:git-PaperSpigot-"3ebeccc"]
        at net.minecraft.server.v1_8_R3.MinecraftServer.B(MinecraftServer.java:773) [spigot.jar:git-PaperSpigot-"3ebeccc"]
        at net.minecraft.server.v1_8_R3.DedicatedServer.B(DedicatedServer.java:378) [spigot.jar:git-PaperSpigot-"3ebeccc"]
        at net.minecraft.server.v1_8_R3.MinecraftServer.A(MinecraftServer.java:713) [spigot.jar:git-PaperSpigot-"3ebeccc"]
        at net.minecraft.server.v1_8_R3.MinecraftServer.run(MinecraftServer.java:616) [spigot.jar:git-PaperSpigot-"3ebeccc"]
        at java.lang.Thread.run(Thread.java:745) [?:1.8.0_74]
Caused by: java.lang.NullPointerException
        at me.iamguus.bfactionschest.listeners.CoreListener.onClick(CoreListener.java:154) ~[?:?]
        at sun.reflect.GeneratedMethodAccessor87.invoke(Unknown Source) ~[?:?]
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:1.8.0_74]
        at java.lang.reflect.Method.invoke(Method.java:498) ~[?:1.8.0_74]
        at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:300) ~[spigot.jar:git-PaperSpigot-"3ebeccc"]
        ... 18 more