Regrowth Chisel 2

---- Minecraft Crash Report ----
// I just don't know what went wrong :(

Time: 8/27/15 8:11 AM
Description: Ticking screen

java.lang.ClassCastException: com.cricketcraft.chisel.block.BlockCarvableGlass cannot be cast to com.cricketcraft.chisel.block.BlockCarvable
	at com.cricketcraft.chisel.client.gui.GuiChisel.func_73876_c(GuiChisel.java:82)
	at net.minecraft.client.Minecraft.func_71407_l(Minecraft.java:1661)
	at net.minecraft.client.Minecraft.func_71411_J(Minecraft.java:973)
	at net.minecraft.client.Minecraft.func_99999_d(Minecraft.java:898)
	at net.minecraft.client.main.Main.main(SourceFile:148)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
	at java.lang.reflect.Method.invoke(Unknown Source)
	at net.minecraft.launchwrapper.Launch.launch(Launch.java:135)
	at net.minecraft.launchwrapper.Launch.main(Launch.java:28)