java.lang.ArrayIndexOutOfBoundsException: 4
	at aak.k_(SourceFile:333)
	at xcompwiz.mystcraft.GuiBook.findInInventory(GuiBook.java:350)
	at xcompwiz.mystcraft.GuiBook.a(GuiBook.java:106)
	at vp.f(SourceFile:122)
	at gb.f(GuiContainer.java:378)
	at vp.i(SourceFile:110)
	at gb.i(GuiContainer.java:368)
	at net.minecraft.client.Minecraft.k(Minecraft.java:1571)
	at net.minecraft.client.Minecraft.x(Minecraft.java:825)
	at net.minecraft.client.Minecraft.run(Minecraft.java:753)
	at java.lang.Thread.run(Unknown Source)