[Server thread/ERROR]: Could not pass event BlockFromToEvent to CustomOreGen v1.0
org.bukkit.event.EventException
	at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:306) ~[spigot-1.11.2.jar:git-Spigot-7d78b81-27dd3ca]
	at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62) ~[spigot-1.11.2.jar:git-Spigot-7d78b81-27dd3ca]
	at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:502) [spigot-1.11.2.jar:git-Spigot-7d78b81-27dd3ca]
	at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:487) [spigot-1.11.2.jar:git-Spigot-7d78b81-27dd3ca]
	at net.minecraft.server.v1_11_R1.BlockFlowing.b(BlockFlowing.java:139) [spigot-1.11.2.jar:git-Spigot-7d78b81-27dd3ca]
	at net.minecraft.server.v1_11_R1.WorldServer.a(WorldServer.java:722) [spigot-1.11.2.jar:git-Spigot-7d78b81-27dd3ca]
	at net.minecraft.server.v1_11_R1.WorldServer.doTick(WorldServer.java:250) [spigot-1.11.2.jar:git-Spigot-7d78b81-27dd3ca]
	at net.minecraft.server.v1_11_R1.MinecraftServer.D(MinecraftServer.java:790) [spigot-1.11.2.jar:git-Spigot-7d78b81-27dd3ca]
	at net.minecraft.server.v1_11_R1.DedicatedServer.D(DedicatedServer.java:399) [spigot-1.11.2.jar:git-Spigot-7d78b81-27dd3ca]
	at net.minecraft.server.v1_11_R1.MinecraftServer.C(MinecraftServer.java:675) [spigot-1.11.2.jar:git-Spigot-7d78b81-27dd3ca]
	at net.minecraft.server.v1_11_R1.MinecraftServer.run(MinecraftServer.java:574) [spigot-1.11.2.jar:git-Spigot-7d78b81-27dd3ca]
	at java.lang.Thread.run(Unknown Source) [?:1.8.0_111]
Caused by: java.lang.NullPointerException
	at de.Linus122.customoregen.Main.getOwner(Main.java:100) ~[?:?]
	at de.Linus122.customoregen.Events.onFromTo(Events.java:35) ~[?:?]
	at sun.reflect.GeneratedMethodAccessor101.invoke(Unknown Source) ~[?:?]
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) ~[?:1.8.0_111]
	at java.lang.reflect.Method.invoke(Unknown Source) ~[?:1.8.0_111]
	at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:302) ~[spigot-1.11.2.jar:git-Spigot-7d78b81-27dd3ca]
	... 11 more