Secret Rooms Mod crash

java.lang.NullPointerException: Tesselating block model
    at com.wynprice.secretroomsmod.core.SecretRoomsHooks.shouldSideBeRendered(SecretRoomsHooks.java:67)
    at net.minecraft.block.state.BlockStateContainer$StateImplementation.func_185894_c(BlockStateContainer.java:437)
    at net.minecraft.client.renderer.BlockModelRenderer.func_187498_b(BlockModelRenderer.java:107)
    at net.minecraftforge.client.model.pipeline.ForgeBlockModelRenderer.func_187498_b(ForgeBlockModelRenderer.java:89)
    at net.minecraft.client.renderer.BlockModelRenderer.func_187493_a(BlockModelRenderer.java:76)
    at net.minecraft.client.renderer.BlockModelRenderer.func_178267_a(BlockModelRenderer.java:55)
    at net.minecraft.client.renderer.BlockRendererDispatcher.func_175018_a(BlockRendererDispatcher.java:80)
    at codechicken.lib.render.block.CCBlockRendererDispatcher.func_175018_a(CCBlockRendererDispatcher.java:64)
    at mods.octarinecore.client.render.AbstractBlockRenderingHandler.renderWorldBlockBase(AbstractBlockRenderingHandler.kt:59)
    at mods.betterfoliage.client.render.RenderConnectedGrass.render(RenderConnectedGrass.kt:32)
    at mods.betterfoliage.client.Hooks.renderWorldBlock(Hooks.kt:89)
    at net.minecraft.client.renderer.chunk.RenderChunk.func_178581_b(RenderChunk.java:296)
    at net.minecraft.client.renderer.chunk.ChunkRenderWorker.func_178474_a(ChunkRenderWorker.java:119)
    at net.minecraft.client.renderer.chunk.ChunkRenderDispatcher.func_178505_b(ChunkRenderDispatcher.java:174)
    at net.minecraft.client.renderer.RenderGlobal.func_174970_a(RenderGlobal.java:1459)
    at net.minecraft.client.renderer.EntityRenderer.func_175068_a(EntityRenderer.java:1716)
    at net.minecraft.client.renderer.EntityRenderer.func_78471_a(EntityRenderer.java:1606)
    at net.minecraft.client.renderer.EntityRenderer.func_181560_a(EntityRenderer.java:1377)
    at net.minecraft.client.Minecraft.func_71411_J(Minecraft.java:1117)
    at net.minecraft.client.Minecraft.func_99999_d(Minecraft.java:397)
    at net.minecraft.client.main.Main.main(SourceFile:123)
    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)
    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 org.multimc.onesix.OneSixLauncher.launchWithMainClass(OneSixLauncher.java:196)
    at org.multimc.onesix.OneSixLauncher.launch(OneSixLauncher.java:231)
    at org.multimc.EntryPoint.listen(EntryPoint.java:143)
    at org.multimc.EntryPoint.main(EntryPoint.java:34)


A detailed walkthrough of the error, its code path and all known details is as follows:
---------------------------------------------------------------------------------------

-- Head --
Thread: Client thread
Stacktrace:
    at com.wynprice.secretroomsmod.core.SecretRoomsHooks.shouldSideBeRendered(SecretRoomsHooks.java:67)
    at net.minecraft.block.state.BlockStateContainer$StateImplementation.func_185894_c(BlockStateContainer.java:437)
    at net.minecraft.client.renderer.BlockModelRenderer.func_187498_b(BlockModelRenderer.java:107)
    at net.minecraftforge.client.model.pipeline.ForgeBlockModelRenderer.func_187498_b(ForgeBlockModelRenderer.java:89)

-- Block model being tesselated --
Details:
    Block: minecraft:grass[snowy=false]
    Block location: World: (-36,4,-592), Chunk: (at 12,0,0 in -3,-37; contains blocks -48,0,-592 to -33,255,-577), Region: (-1,-2; contains chunks -32,-64 to -1,-33, blocks -512,0,-1024 to -1,255,-513)
    Using AO: true
Stacktrace:
    at net.minecraft.client.renderer.BlockModelRenderer.func_187493_a(BlockModelRenderer.java:76)
    at net.minecraft.client.renderer.BlockModelRenderer.func_178267_a(BlockModelRenderer.java:55)

-- Block being tesselated --
Details:
    Block type: ID #2 (tile.grass // net.minecraft.block.BlockGrass)
    Block data value: 0 / 0x0 / 0b0000
    Block location: World: (-36,4,-592), Chunk: (at 12,0,0 in -3,-37; contains blocks -48,0,-592 to -33,255,-577), Region: (-1,-2; contains chunks -32,-64 to -1,-33, blocks -512,0,-1024 to -1,255,-513)
Stacktrace:
    at net.minecraft.client.renderer.BlockRendererDispatcher.func_175018_a(BlockRendererDispatcher.java:80)
    at codechicken.lib.render.block.CCBlockRendererDispatcher.func_175018_a(CCBlockRendererDispatcher.java:64)
    at mods.octarinecore.client.render.AbstractBlockRenderingHandler.renderWorldBlockBase(AbstractBlockRenderingHandler.kt:59)
    at mods.betterfoliage.client.render.RenderConnectedGrass.render(RenderConnectedGrass.kt:32)
    at mods.betterfoliage.client.Hooks.renderWorldBlock(Hooks.kt:89)
    at net.minecraft.client.renderer.chunk.RenderChunk.func_178581_b(RenderChunk.java:296)
    at net.minecraft.client.renderer.chunk.ChunkRenderWorker.func_178474_a(ChunkRenderWorker.java:119)
    at net.minecraft.client.renderer.chunk.ChunkRenderDispatcher.func_178505_b(ChunkRenderDispatcher.java:174)
    at net.minecraft.client.renderer.RenderGlobal.func_174970_a(RenderGlobal.java:1459)
    at net.minecraft.client.renderer.EntityRenderer.func_175068_a(EntityRenderer.java:1716)
    at net.minecraft.client.renderer.EntityRenderer.func_78471_a(EntityRenderer.java:1606)