12:50:47 [javastacktrace] 	at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:294) ~[spigot-1.7.5-R0.1-SNAPSHOT(1).jar:git-Spigot-1387]
12:50:47 [javastacktrace] 	at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62) ~[spigot-1.7.5-R0.1-SNAPSHOT(1).jar:git-Spigot-1387]
12:50:47 [javastacktrace] 	at org.bukkit.plugin.TimedRegisteredListener.callEvent(TimedRegisteredListener.java:30) ~[spigot-1.7.5-R0.1-SNAPSHOT(1).jar:git-Spigot-1387]
12:50:47 [javastacktrace] 	at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:502) [spigot-1.7.5-R0.1-SNAPSHOT(1).jar:git-Spigot-1387]
12:50:47 [javastacktrace] 	at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:487) [spigot-1.7.5-R0.1-SNAPSHOT(1).jar:git-Spigot-1387]
12:50:47 [javastacktrace] 	at org.bukkit.craftbukkit.v1_7_R2.event.CraftEventFactory.callEvent(CraftEventFactory.java:99) [spigot-1.7.5-R0.1-SNAPSHOT(1).jar:git-Spigot-1387]
12:50:47 [javastacktrace] 	at org.bukkit.craftbukkit.v1_7_R2.event.CraftEventFactory.callEntityDamageEvent(CraftEventFactory.java:403) [spigot-1.7.5-R0.1-SNAPSHOT(1).jar:git-Spigot-1387]
12:50:47 [javastacktrace] 	at org.bukkit.craftbukkit.v1_7_R2.event.CraftEventFactory.handleEntityDamageEvent(CraftEventFactory.java:430) [spigot-1.7.5-R0.1-SNAPSHOT(1).jar:git-Spigot-1387]
12:50:47 [javastacktrace] 	at net.minecraft.server.v1_7_R2.EntityLiving.damageEntity(EntityLiving.java:663) [spigot-1.7.5-R0.1-SNAPSHOT(1).jar:git-Spigot-1387]
12:50:47 [javastacktrace] 	at net.minecraft.server.v1_7_R2.EntityMonster.damageEntity(EntityMonster.java:47) [spigot-1.7.5-R0.1-SNAPSHOT(1).jar:git-Spigot-1387]
12:50:47 [javastacktrace] 	at net.minecraft.server.v1_7_R2.EntityHuman.attack(EntityHuman.java:923) [spigot-1.7.5-R0.1-SNAPSHOT(1).jar:git-Spigot-1387]
12:50:47 [javastacktrace] 	at net.minecraft.server.v1_7_R2.PlayerConnection.a(PlayerConnection.java:1144) [spigot-1.7.5-R0.1-SNAPSHOT(1).jar:git-Spigot-1387]
12:50:47 [javastacktrace] 	at net.minecraft.server.v1_7_R2.NetworkManager.a(NetworkManager.java:148) [spigot-1.7.5-R0.1-SNAPSHOT(1).jar:git-Spigot-1387]
12:50:47 [javastacktrace] 	at net.minecraft.server.v1_7_R2.ServerConnection.c(ServerConnection.java:77) [spigot-1.7.5-R0.1-SNAPSHOT(1).jar:git-Spigot-1387]
12:50:47 [javastacktrace] 	at net.minecraft.server.v1_7_R2.MinecraftServer.v(MinecraftServer.java:705) [spigot-1.7.5-R0.1-SNAPSHOT(1).jar:git-Spigot-1387]
12:50:47 [javastacktrace] 	at net.minecraft.server.v1_7_R2.DedicatedServer.v(DedicatedServer.java:273) [spigot-1.7.5-R0.1-SNAPSHOT(1).jar:git-Spigot-1387]
12:50:47 [javastacktrace] 	at net.minecraft.server.v1_7_R2.MinecraftServer.u(MinecraftServer.java:568) [spigot-1.7.5-R0.1-SNAPSHOT(1).jar:git-Spigot-1387]
12:50:47 [javastacktrace] 	at net.minecraft.server.v1_7_R2.MinecraftServer.run(MinecraftServer.java:474) [spigot-1.7.5-R0.1-SNAPSHOT(1).jar:git-Spigot-1387]
12:50:47 [javastacktrace] Caused by: java.lang.NullPointerException
12:50:47 [javastacktrace] 	at me.bugsyftw.upgrade.Upgrade.onEntityDamage(Upgrade.java:444) ~[?:?]
12:50:47 [javastacktrace] 	at java.lang.reflect.Method.invoke(Unknown Source) ~[?:1.7.0_51]
12:50:47 [javastacktrace] 	at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:292) ~[spigot-1.7.5-R0.1-SNAPSHOT(1).jar:git-Spigot-1387]