[06:25:01 ERROR]: Could not pass event PlayerLevelChangeEvent to ItemLoreStats v
4.33
org.bukkit.event.EventException
        at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.ja
va:320) ~[spigot-1.7.2-R0.4-SNAPSHOT.jar:git-Spigot-1.7.2-R0.3-122-gb58e277]
        at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.jav
a:62) ~[spigot-1.7.2-R0.4-SNAPSHOT.jar:git-Spigot-1.7.2-R0.3-122-gb58e277]
        at org.bukkit.plugin.TimedRegisteredListener.callEvent(TimedRegisteredLi
stener.java:30) ~[spigot-1.7.2-R0.4-SNAPSHOT.jar:git-Spigot-1.7.2-R0.3-122-gb58e
277]
        at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.j
ava:487) [spigot-1.7.2-R0.4-SNAPSHOT.jar:git-Spigot-1.7.2-R0.3-122-gb58e277]
        at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.j
ava:472) [spigot-1.7.2-R0.4-SNAPSHOT.jar:git-Spigot-1.7.2-R0.3-122-gb58e277]
        at org.bukkit.craftbukkit.v1_7_R1.event.CraftEventFactory.callPlayerLeve
lChangeEvent(CraftEventFactory.java:484) [spigot-1.7.2-R0.4-SNAPSHOT.jar:git-Spi
got-1.7.2-R0.3-122-gb58e277]
        at net.minecraft.server.v1_7_R1.EntityPlayer.i(EntityPlayer.java:304) [s
pigot-1.7.2-R0.4-SNAPSHOT.jar:git-Spigot-1.7.2-R0.3-122-gb58e277]
        at net.minecraft.server.v1_7_R1.PlayerConnection.a(PlayerConnection.java
:355) [spigot-1.7.2-R0.4-SNAPSHOT.jar:git-Spigot-1.7.2-R0.3-122-gb58e277]
        at net.minecraft.server.v1_7_R1.PacketPlayInFlying.a(SourceFile:137) [sp
igot-1.7.2-R0.4-SNAPSHOT.jar:git-Spigot-1.7.2-R0.3-122-gb58e277]
        at net.minecraft.server.v1_7_R1.PacketPlayInPosition.handle(SourceFile:6
3) [spigot-1.7.2-R0.4-SNAPSHOT.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-R0.4-SNAPSHOT.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-R0.4-SNAPSHOT.jar:git-Spigot-1.7.2-R0.3-122-gb58e277]
        at net.minecraft.server.v1_7_R1.MinecraftServer.u(MinecraftServer.java:7
00) [spigot-1.7.2-R0.4-SNAPSHOT.jar:git-Spigot-1.7.2-R0.3-122-gb58e277]
        at net.minecraft.server.v1_7_R1.DedicatedServer.u(DedicatedServer.java:2
73) [spigot-1.7.2-R0.4-SNAPSHOT.jar:git-Spigot-1.7.2-R0.3-122-gb58e277]
        at net.minecraft.server.v1_7_R1.MinecraftServer.t(MinecraftServer.java:5
62) [spigot-1.7.2-R0.4-SNAPSHOT.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-R0.4-SNAPSHOT.jar:git-Spigot-1.7.2-R0.3-122-gb58e277]
        at net.minecraft.server.v1_7_R1.ThreadServerApplication.run(SourceFile:6
17) [spigot-1.7.2-R0.4-SNAPSHOT.jar:git-Spigot-1.7.2-R0.3-122-gb58e277]
Caused by: java.lang.StringIndexOutOfBoundsException: String index out of range:
 -1
        at java.lang.String.substring(Unknown Source) ~[?:1.7.0_65]
        at com.github.supavitax.itemlorestats.PlayerLevel.PlayerLevel.increaseIt
emStatOnItemInHand(PlayerLevel.java:100) ~[?:?]
        at com.github.supavitax.itemlorestats.PlayerLevel.PlayerLevelEvents.onPl
ayerLevel(PlayerLevelEvents.java:20) ~[?:?]
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.7.0
_65]
        at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) ~[?:1.7.0
_65]
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) ~[?:1
.7.0_65]
        at java.lang.reflect.Method.invoke(Unknown Source) ~[?:1.7.0_65]
        at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.ja
va:318) ~[spigot-1.7.2-R0.4-SNAPSHOT.jar:git-Spigot-1.7.2-R0.3-122-gb58e277]
        ... 16 more