Having trouble with the mod I'm porting

I'm having trouble of that thing shown down here:

package chumbanotz.mutantbeasts.client;

import chumbanotz.mutantbeasts.MutantBeasts;
import chumbanotz.mutantbeasts.client.gui.screen.CreeperMinionTrackerScreen;
import chumbanotz.mutantbeasts.client.particle.EndersoulParticle;
import chumbanotz.mutantbeasts.client.particle.SkullSpiritParticle;
import chumbanotz.mutantbeasts.client.renderer.entity.BodyPartRenderer;
import chumbanotz.mutantbeasts.client.renderer.entity.CreeperMinionEggRenderer;
import chumbanotz.mutantbeasts.client.renderer.entity.CreeperMinionRenderer;
import chumbanotz.mutantbeasts.client.renderer.entity.EndersoulCloneRenderer;
import chumbanotz.mutantbeasts.client.renderer.entity.EndersoulFragmentRenderer;
import chumbanotz.mutantbeasts.client.renderer.entity.MutantArrowRenderer;
import chumbanotz.mutantbeasts.client.renderer.entity.MutantCreeperRenderer;
import chumbanotz.mutantbeasts.client.renderer.entity.MutantEndermanRenderer;
import chumbanotz.mutantbeasts.client.renderer.entity.MutantSkeletonRenderer;
import chumbanotz.mutantbeasts.client.renderer.entity.MutantSnowGolemRenderer;
import chumbanotz.mutantbeasts.client.renderer.entity.MutantZombieRenderer;
import chumbanotz.mutantbeasts.client.renderer.entity.SpiderPigRenderer;
import chumbanotz.mutantbeasts.client.renderer.entity.ThrowableBlockRenderer;
import chumbanotz.mutantbeasts.client.renderer.entity.layers.CreeperMinionShoulderLayer;
import chumbanotz.mutantbeasts.client.renderer.entity.model.EndersoulHandModel;
import chumbanotz.mutantbeasts.entity.*;
import chumbanotz.mutantbeasts.entity.mutant.MutantCreeperEntity;
import chumbanotz.mutantbeasts.entity.mutant.MutantEndermanEntity;
import chumbanotz.mutantbeasts.entity.mutant.MutantSkeletonEntity;
import chumbanotz.mutantbeasts.entity.mutant.MutantSnowGolemEntity;
import chumbanotz.mutantbeasts.entity.mutant.MutantZombieEntity;
import chumbanotz.mutantbeasts.entity.mutant.SpiderPigEntity;
import chumbanotz.mutantbeasts.entity.projectile.ChemicalXEntity;
import chumbanotz.mutantbeasts.entity.projectile.MutantArrowEntity;
import chumbanotz.mutantbeasts.entity.projectile.ThrowableBlockEntity;
import chumbanotz.mutantbeasts.particles.MBParticleTypes;
import net.minecraft.client.Minecraft;
import net.minecraft.client.gui.screens.Screen;
import net.minecraft.client.model.HumanoidModel;
import net.minecraft.client.model.SkullModel;
import net.minecraft.client.renderer.blockentity.SkullBlockRenderer;
import net.minecraft.client.renderer.entity.EntityRenderer;
import net.minecraft.client.renderer.entity.PlayerRenderer;
import net.minecraft.client.renderer.entity.RenderLayerParent;
import net.minecraft.client.renderer.entity.SpriteRenderer;
import net.minecraft.client.renderer.entity.ThrownItemRenderer;
import net.minecraft.client.renderer.entity.layers.RenderLayer;
import net.minecraft.client.renderer.entity.model.BipedModel;
import net.minecraft.client.renderer.entity.model.RendererModel;
import net.minecraft.client.renderer.entity.player.PlayerRenderer;
import net.minecraft.client.renderer.model.IBakedModel;
import net.minecraft.client.renderer.model.ModelResourceLocation;
import net.minecraft.client.renderer.model.ModelRotation;
import net.minecraft.client.renderer.vertex.DefaultVertexFormats;
import net.minecraft.core.particles.ParticleType;
import net.minecraft.resources.ResourceLocation;
import net.minecraft.util.ResourceLocation;
import net.minecraft.world.entity.Entity;
import net.minecraft.world.level.block.SkullBlock;
import net.minecraftforge.api.distmarker.Dist;
import net.minecraftforge.client.event.ModelBakeEvent;
import net.minecraftforge.client.event.ModelRegistryEvent;
import net.minecraftforge.client.event.ParticleFactoryRegisterEvent;
import net.minecraftforge.client.model.ModelLoader;
import net.minecraftforge.eventbus.api.SubscribeEvent;
import net.minecraftforge.fml.DeferredWorkQueue;
import net.minecraftforge.client.ClientRegistry
import net.minecraftforge.fml.client.registry.RenderingRegistry;
import net.minecraftforge.fml.common.Mod;
import net.minecraftforge.fml.common.Mod.EventBusSubscriber;
import net.minecraftforge.fml.event.lifecycle.FMLClientSetupEvent;
import net.minecraftforge.fml.util.ObfuscationReflectionHelper;

import java.util.Map;

@EventBusSubscriber(modid = "mutantbeasts", bus = Mod.EventBusSubscriber.Bus.MOD, value = {Dist.CLIENT})
public enum ClientEventHandler {
	INSTANCE;

	@SubscribeEvent
	public static void onClientSetup(FMLClientSetupEvent event) {
		Map<SkullBlock.Type, SkullModel> MODELS_MAP = (Map<SkullBlock.Type, SkullModel>)ObfuscationReflectionHelper.getPrivateValue(SkullBlockRenderer.class, null, "MODEL_BY_TYPE");
		Map<SkullBlock.Type, ResourceLocation> SKIN_MAP = (Map<SkullBlock.Type, ResourceLocation>) ObfuscationReflectionHelper.getPrivateValue(SkullBlockRenderer.class, null, "SKIN_BY_TYPE");
		MODELS_MAP.put(MBSkullBlock.Types.MUTANT_SKELETON, new SkullModel());
		SKIN_MAP.put(MBSkullBlock.Types.MUTANT_SKELETON, MutantBeasts.getEntityTexture("mutant_skeleton"));
		ClientRegistry.bindTileEntityRenderer(MBTileEntityTypes.SKULL, SkullBlockRenderer::new);
		ClientRegistry.registerEntityShader(CreeperMinionEntity.class, new ResourceLocation("shaders/post/creeper.json"));
		ClientRegistry.registerEntityShader(EndersoulCloneEntity.class, new ResourceLocation("shaders/post/invert.json"));
		ClientRegistry.registerEntityShader(MutantCreeperEntity.class, new ResourceLocation("shaders/post/creeper.json"));
		ClientRegistry.registerEntityShader(MutantEndermanEntity.class, new ResourceLocation("shaders/post/invert.json"));
		RenderingRegistry.registerEntityRenderingHandler(MBEntityType.BODY_PART, BodyPartRenderer::new);
		RenderingRegistry.registerEntityRenderingHandler(MBEntityType.CHEMICAL_X, render -> new ThrownItemRenderer(render, Minecraft.getInstance().getItemRenderer()));
		RenderingRegistry.registerEntityRenderingHandler(MBEntityType.CREEPER_MINION, CreeperMinionRenderer::new);
		RenderingRegistry.registerEntityRenderingHandler(MBEntityType.CREEPER_MINION_EGG, CreeperMinionEggRenderer::new);
		RenderingRegistry.registerEntityRenderingHandler(MBEntityType.ENDERSOUL_CLONE, EndersoulCloneRenderer::new);
		RenderingRegistry.registerEntityRenderingHandler(MBEntityType.ENDERSOUL_FRAGMENT, EndersoulFragmentRenderer::new);
		RenderingRegistry.registerEntityRenderingHandler(MBEntityType.MUTANT_ARROW, MutantArrowRenderer::new);
		RenderingRegistry.registerEntityRenderingHandler(MBEntityType.MUTANT_CREEPER, MutantCreeperRenderer::new);
		RenderingRegistry.registerEntityRenderingHandler(MBEntityType.MUTANT_ENDERMAN, MutantEndermanRenderer::new);
		RenderingRegistry.registerEntityRenderingHandler(MBEntityType.MUTANT_SKELETON, MutantSkeletonRenderer::new);
		RenderingRegistry.registerEntityRenderingHandler(MBEntityType.MUTANT_SNOW_GOLEM, MutantSnowGolemRenderer::new);
		RenderingRegistry.registerEntityRenderingHandler(MBEntityType.MUTANT_ZOMBIE, MutantZombieRenderer::new);
		RenderingRegistry.registerEntityRenderingHandler(MBEntityType.SKULL_SPIRIT, manager -> new EntityRenderer<Entity>(manager) {
			public ResourceLocation getTextureLocation(Entity entity) {
				return null;
			}
		});
		RenderingRegistry.registerEntityRenderingHandler(MBEntityType.SPIDER_PIG, SpiderPigRenderer::new);
		RenderingRegistry.registerEntityRenderingHandler(MBEntityType.THROWABLE_BLOCK, ThrowableBlockRenderer::new);
		for (PlayerRenderer renderer : Minecraft.getInstance().getEntityRenderDispatcher().getSkinMap().values())
			renderer.addLayer((RenderLayer)new CreeperMinionShoulderLayer((RenderLayerParent)renderer));
	}

	@SubscribeEvent
	public static void onParticleFactoryRegistry(ParticleFactoryRegisterEvent event) {
		(Minecraft.getInstance()).particleEngine.register((ParticleType)MBParticleTypes.ENDERSOUL, chumbanotz.mutantbeasts.client.particle.EndersoulParticle.Factory::new);
		(Minecraft.getInstance()).particleEngine.register((ParticleType)MBParticleTypes.SKULL_SPIRIT, chumbanotz.mutantbeasts.client.particle.SkullSpiritParticle.Factory::new);
	}

	public void displayCreeperMinionTrackerGUI(CreeperMinionEntity creeperMinion) {
		Minecraft.getInstance().setScreen((Screen)new CreeperMinionTrackerScreen(creeperMinion));
	}
}

Can anyone help me please?