Game crashed when entering a village in a single player world and looking at double stone slabs generated in the blacksmith building.

EDIT: I realise in your commits it appears that this is fixed, but I wasn't sure if this was a different issue, since the upload date for the file on CurseForge is more recent than the commits date.

EDIT 2: Please ignore this and just close it. I was stupid. I'm using the 1.9.4 version somehow? I don't even know how I managed that. I'm a fucking mess. Sorry.

Minecraft version: 1.10.2
Forge version: 12.18.0.2010
Mod version: 3.3.1

Stacktrace:

at net.blay09.mods.kleeslabs.KleeSlabs.onDrawBlockHighlight(KleeSlabs.java:158)
at net.minecraftforge.fml.common.eventhandler.ASMEventHandler_293_KleeSlabs_onDrawBlockHighlight_DrawBlockHighlightEvent.invoke(.dynamic)
at net.minecraftforge.fml.common.eventhandler.ASMEventHandler.invoke(ASMEventHandler.java:68)
at net.minecraftforge.fml.common.eventhandler.EventBus.post(EventBus.java:159)
at net.minecraftforge.client.ForgeHooksClient.onDrawBlockHighlight(ForgeHooksClient.java:158)
at net.minecraft.client.renderer.EntityRenderer.func_175068_a(EntityRenderer.java:1329)
at net.minecraft.client.renderer.EntityRenderer.func_78471_a(EntityRenderer.java:1229)

Full crash report: pastebin.com/rDkcgnwd

No worries :)