Issue with AutoArmor

[10trips]

I get this error, i do not see anything wrong.

java.lang.reflect.InvocationTargetException
at sun.reflect.GeneratedMethodAccessor4.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at (client name).event.Event.call(Event.java:67)
at (client name).event.Event.call(Event.java:45)
at net.minecraft.client.entity.EntityPlayerSP.onUpdate(EntityPlayerSP.java:176)
at net.minecraft.world.World.updateEntityWithOptionalForce(World.java:1879)
at net.minecraft.world.World.updateEntity(World.java:1848)
at net.minecraft.world.World.updateEntities(World.java:1700)
at net.minecraft.client.Minecraft.runTick(Minecraft.java:2192)
at net.minecraft.client.Minecraft.runGameLoop(Minecraft.java:1108)
at net.minecraft.client.Minecraft.run(Minecraft.java:423)
at net.minecraft.client.main.Main.main(Main.java:113)
at Start.main(Start.java:11)
Caused by: java.lang.NullPointerException
at (client name).mod.impl.AutoArmor.autoArmor(AutoArmor.java:42)
at (client name).mod.impl.AutoArmor.onUpdate(AutoArmor.java:30)
... 14 more