Generation Error

[Artel]

17.12 20:16:30 [Server] ERROR Could not pass event StructureGrowEvent to EpicWorldGenerator v7.2.29
17.12 20:16:30 [Server] INFO org.bukkit.event.EventException
17.12 20:16:30 [Server] INFO at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:302) ~[patched.jar:git-TacoSpigot-"c80c1e5"]
17.12 20:16:30 [Server] INFO at co.aikar.timings.TimedEventExecutor.execute(TimedEventExecutor.java:78) ~[patched.jar:git-TacoSpigot-"c80c1e5"]
17.12 20:16:30 [Server] INFO at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62) ~[patched.jar:git-TacoSpigot-"c80c1e5"]
17.12 20:16:30 [Server] INFO at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:501) [patched.jar:git-TacoSpigot-"c80c1e5"]
17.12 20:16:30 [Server] INFO at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:486) [patched.jar:git-TacoSpigot-"c80c1e5"]
17.12 20:16:30 [Server] INFO at net.minecraft.server.v1_8_R3.ItemStack.placeItem(ItemStack.java:136) [patched.jar:git-TacoSpigot-"c80c1e5"]
17.12 20:16:30 [Server] INFO at net.minecraft.server.v1_8_R3.PlayerInteractManager.interact(PlayerInteractManager.java:503) [patched.jar:git-TacoSpigot-"c80c1e5"]
17.12 20:16:30 [Server] INFO at net.minecraft.server.v1_8_R3.PlayerConnection.a(PlayerConnection.java:763) [patched.jar:git-TacoSpigot-"c80c1e5"]
17.12 20:16:30 [Server] INFO at net.minecraft.server.v1_8_R3.PacketPlayInBlockPlace.a(PacketPlayInBlockPlace.java:52) [patched.jar:git-TacoSpigot-"c80c1e5"]
17.12 20:16:30 [Server] INFO at net.minecraft.server.v1_8_R3.PacketPlayInBlockPlace.a(PacketPlayInBlockPlace.java:1) [patched.jar:git-TacoSpigot-"c80c1e5"]
17.12 20:16:30 [Server] INFO at net.minecraft.server.v1_8_R3.PlayerConnectionUtils$1.run(SourceFile:13) [patched.jar:git-TacoSpigot-"c80c1e5"]
17.12 20:16:30 [Server] INFO at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) [?:1.8.0_151]
17.12 20:16:30 [Server] INFO at java.util.concurrent.FutureTask.run(FutureTask.java:266) [?:1.8.0_151]
17.12 20:16:30 [Server] INFO at net.minecraft.server.v1_8_R3.SystemUtils.a(SourceFile:44) [patched.jar:git-TacoSpigot-"c80c1e5"]
17.12 20:16:30 [Server] INFO at net.minecraft.server.v1_8_R3.MinecraftServer.B(MinecraftServer.java:774) [patched.jar:git-TacoSpigot-"c80c1e5"]
17.12 20:16:30 [Server] INFO at net.minecraft.server.v1_8_R3.DedicatedServer.B(DedicatedServer.java:379) [patched.jar:git-TacoSpigot-"c80c1e5"]
17.12 20:16:30 [Server] INFO at net.minecraft.server.v1_8_R3.MinecraftServer.A(MinecraftServer.java:713) [patched.jar:git-TacoSpigot-"c80c1e5"]
17.12 20:16:30 [Server] INFO at net.minecraft.server.v1_8_R3.MinecraftServer.run(MinecraftServer.java:616) [patched.jar:git-TacoSpigot-"c80c1e5"]
17.12 20:16:30 [Server] INFO at java.lang.Thread.run(Thread.java:748) [?:1.8.0_151]
17.12 20:16:30 [Server] INFO Caused by: java.lang.NullPointerException
17.12 20:16:30 [Server] INFO at com.minelazz.epicworldgenerator.EpicWorldGenerator.a(EpicWorldGenerator.java:448) ~[EpicWorldGenerator.jar:?]
17.12 20:16:30 [Server] INFO at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_151]
17.12 20:16:30 [Server] INFO at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[?:1.8.0_151]
17.12 20:16:30 [Server] INFO at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:1.8.0_151]
17.12 20:16:30 [Server] INFO at java.lang.reflect.Method.invoke(Method.java:498) ~[?:1.8.0_151]
17.12 20:16:30 [Server] INFO at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:300) ~[patched.jar:git-TacoSpigot-"c80c1e5"]
17.12 20:16:30 [Server] INFO ... 18 more