[14:48:59 ERROR]: Could not pass event PlayerInteractEvent to KowalAnimka v0.1
org.bukkit.event.EventException
	at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:320) ~[spigot_1.7.2.jar:git-Spigot-1.7.2-R0.3-122-gb58e277]
	at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62) ~[spigot_1.7.2.jar:git-Spigot-1.7.2-R0.3-122-gb58e277]
	at org.bukkit.plugin.TimedRegisteredListener.callEvent(TimedRegisteredListener.java:30) ~[spigot_1.7.2.jar:git-Spigot-1.7.2-R0.3-122-gb58e277]
	at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:487) [spigot_1.7.2.jar:git-Spigot-1.7.2-R0.3-122-gb58e277]
	at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:472) [spigot_1.7.2.jar:git-Spigot-1.7.2-R0.3-122-gb58e277]
	at org.bukkit.craftbukkit.v1_7_R1.event.CraftEventFactory.callPlayerInteractEvent(CraftEventFactory.java:212) [spigot_1.7.2.jar:git-Spigot-1.7.2-R0.3-122-gb58e277]
	at org.bukkit.craftbukkit.v1_7_R1.event.CraftEventFactory.callPlayerInteractEvent(CraftEventFactory.java:182) [spigot_1.7.2.jar:git-Spigot-1.7.2-R0.3-122-gb58e277]
	at net.minecraft.server.v1_7_R1.PlayerConnection.a(PlayerConnection.java:617) [spigot_1.7.2.jar:git-Spigot-1.7.2-R0.3-122-gb58e277]
	at net.minecraft.server.v1_7_R1.PacketPlayInBlockPlace.a(SourceFile:60) [spigot_1.7.2.jar:git-Spigot-1.7.2-R0.3-122-gb58e277]
	at net.minecraft.server.v1_7_R1.PacketPlayInBlockPlace.handle(SourceFile:9) [spigot_1.7.2.jar:git-Spigot-1.7.2-R0.3-122-gb58e277]
	at net.minecraft.server.v1_7_R1.NetworkManager.a(NetworkManager.java:147) [spigot_1.7.2.jar:git-Spigot-1.7.2-R0.3-122-gb58e277]
	at net.minecraft.server.v1_7_R1.ServerConnection.c(ServerConnection.java:77) [spigot_1.7.2.jar:git-Spigot-1.7.2-R0.3-122-gb58e277]
	at net.minecraft.server.v1_7_R1.MinecraftServer.u(MinecraftServer.java:700) [spigot_1.7.2.jar:git-Spigot-1.7.2-R0.3-122-gb58e277]
	at net.minecraft.server.v1_7_R1.DedicatedServer.u(DedicatedServer.java:273) [spigot_1.7.2.jar:git-Spigot-1.7.2-R0.3-122-gb58e277]
	at net.minecraft.server.v1_7_R1.MinecraftServer.t(MinecraftServer.java:562) [spigot_1.7.2.jar:git-Spigot-1.7.2-R0.3-122-gb58e277]
	at net.minecraft.server.v1_7_R1.MinecraftServer.run(MinecraftServer.java:469) [spigot_1.7.2.jar:git-Spigot-1.7.2-R0.3-122-gb58e277]
	at net.minecraft.server.v1_7_R1.ThreadServerApplication.run(SourceFile:617) [spigot_1.7.2.jar:git-Spigot-1.7.2-R0.3-122-gb58e277]
Caused by: java.lang.NullPointerException
	at pl.mranimekpl.kowal.Main.onInteract(Main.java:26) ~[?:?]
	at sun.reflect.GeneratedMethodAccessor33.invoke(Unknown Source) ~[?:?]
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:1.7.0_65]
	at java.lang.reflect.Method.invoke(Method.java:606) ~[?:1.7.0_65]
	at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:318) ~[spigot_1.7.2.jar:git-Spigot-1.7.2-R0.3-122-gb58e277]
	... 16 more