How can I add my custom ClientEventListener to my MainMod.java class?

package me.flossenmonster.testversion;

import org.apache.logging.log4j.Logger;
import org.apache.logging.log4j.LogManager;

import net.minecraftforge.fml.network.simple.SimpleChannel;
import net.minecraftforge.fml.network.NetworkRegistry;
import net.minecraftforge.fml.javafmlmod.FMLJavaModLoadingContext;
import net.minecraftforge.fml.event.server.FMLServerStartingEvent;
import net.minecraftforge.fml.event.lifecycle.FMLCommonSetupEvent;
import net.minecraftforge.fml.event.lifecycle.FMLClientSetupEvent;
import net.minecraftforge.fml.common.Mod;
import net.minecraftforge.eventbus.api.SubscribeEvent;
import net.minecraftforge.event.RegistryEvent;
import net.minecraftforge.common.MinecraftForge;

import net.minecraft.util.ResourceLocation;
import net.minecraft.item.Item;
import net.minecraft.entity.EntityType;
import net.minecraft.enchantment.Enchantment;
import net.minecraft.block.Block;

import java.util.function.Supplier;
import net.minecraftforge.eventbus.api.EventPriority;

@Mod("testversion")
public class TestversionMod {
	public static final Logger LOGGER = LogManager.getLogger(TestversionMod.class);
	private static final String PROTOCOL_VERSION = "1";
	public static final SimpleChannel PACKET_HANDLER = NetworkRegistry.newSimpleChannel(new ResourceLocation("testversion", "testversion"),
			() -> PROTOCOL_VERSION, PROTOCOL_VERSION::equals, PROTOCOL_VERSION::equals);
	public TestversionModElements elements;
	public TestversionMod() {
		elements = new TestversionModElements();
		FMLJavaModLoadingContext.get().getModEventBus().register(this);
		FMLJavaModLoadingContext.get().getModEventBus().addListener(this::init);
		FMLJavaModLoadingContext.get().getModEventBus().addListener(this::clientLoad);
		MinecraftForge.EVENT_BUS.register(new TestversionModFMLBusEvents(this));
		MinecraftForge.EVENT_BUS.addListener(EventPriority.HIGHEST, ClientEventListener::renderPlayer);
	}

	private void init(FMLCommonSetupEvent event) {
		elements.getElements().forEach(element -> element.init(event));
	}

	public void clientLoad(FMLClientSetupEvent event) {
		elements.getElements().forEach(element -> element.clientLoad(event));
	}

	@SubscribeEvent
	public void registerBlocks(RegistryEvent.Register<Block> event) {
		event.getRegistry().registerAll(elements.getBlocks().stream().map(Supplier::get).toArray(Block[]::new));
	}

	@SubscribeEvent
	public void registerItems(RegistryEvent.Register<Item> event) {
		event.getRegistry().registerAll(elements.getItems().stream().map(Supplier::get).toArray(Item[]::new));
	}

	@SubscribeEvent
	public void registerEntities(RegistryEvent.Register<EntityType<?>> event) {
		event.getRegistry().registerAll(elements.getEntities().stream().map(Supplier::get).toArray(EntityType[]::new));
	}

	@SubscribeEvent
	public void registerEnchantments(RegistryEvent.Register<Enchantment> event) {
		event.getRegistry().registerAll(elements.getEnchantments().stream().map(Supplier::get).toArray(Enchantment[]::new));
	}

	@SubscribeEvent
	public void registerSounds(RegistryEvent.Register<net.minecraft.util.SoundEvent> event) {
		elements.registerSounds(event);
	}
	private static class TestversionModFMLBusEvents {
		private final TestversionMod parent;
		TestversionModFMLBusEvents(TestversionMod parent) {
			this.parent = parent;
		}

		@SubscribeEvent
		public void serverLoad(FMLServerStartingEvent event) {
			this.parent.elements.getElements().forEach(element -> element.serverLoad(event));
		}
	}
}

This is my Main Class
 

package me.flossenmonster.testversion;

import net.minecraftforge.eventbus.api.SubscribeEvent;
import net.minecraftforge.client.event.RenderPlayerEvent;
import net.minecraft.entity.player.PlayerEntity;
import net.minecraft.inventory.EquipmentSlotType;

public class ClientEventListener {


@SubscribeEvent
public static void renderPlayer(final RenderPlayerEvent event) {

PlayerEntity player = event.getPlayer();

if(player.hasItemInSlot(EquipmentSlotType.LEGS)) {

	System.out.println("Something");

	event.setCanceled(true);
	
		}

	}

}

And this is my ClientEventListener Class

I did as you said so, but it still doesn't work.

But maybe it has to go somewhere here or something?

/*
 *    MCreator note:
 *
 *    This file is autogenerated to connect all MCreator mod elements together.
 *
 */
package me.flossenmonster.testversion;

import net.minecraftforge.forgespi.language.ModFileScanData;
import net.minecraftforge.fml.network.NetworkEvent;
import net.minecraftforge.fml.event.server.FMLServerStartingEvent;
import net.minecraftforge.fml.event.lifecycle.FMLCommonSetupEvent;
import net.minecraftforge.fml.event.lifecycle.FMLClientSetupEvent;
import net.minecraftforge.fml.ModList;
import net.minecraftforge.event.RegistryEvent;
import net.minecraftforge.api.distmarker.OnlyIn;
import net.minecraftforge.api.distmarker.Dist;

import net.minecraft.util.ResourceLocation;
import net.minecraft.tags.Tag;
import net.minecraft.network.PacketBuffer;
import net.minecraft.item.Item;
import net.minecraft.entity.EntityType;
import net.minecraft.enchantment.Enchantment;
import net.minecraft.block.Block;

import java.util.function.Supplier;
import java.util.function.Function;
import java.util.function.BiConsumer;
import java.util.Set;
import java.util.Map;
import java.util.List;
import java.util.HashMap;
import java.util.Collections;
import java.util.ArrayList;

import java.lang.annotation.RetentionPolicy;
import java.lang.annotation.Retention;

public class TestversionModElements {
	public final List<ModElement> elements = new ArrayList<>();
	public final List<Supplier<Block>> blocks = new ArrayList<>();
	public final List<Supplier<Item>> items = new ArrayList<>();
	public final List<Supplier<EntityType<?>>> entities = new ArrayList<>();
	public final List<Supplier<Enchantment>> enchantments = new ArrayList<>();
	public static Map<ResourceLocation, net.minecraft.util.SoundEvent> sounds = new HashMap<>();
	public TestversionModElements() {
		try {
			ModFileScanData modFileInfo = ModList.get().getModFileById("testversion").getFile().getScanResult();
			Set<ModFileScanData.AnnotationData> annotations = modFileInfo.getAnnotations();
			for (ModFileScanData.AnnotationData annotationData : annotations) {
				if (annotationData.getAnnotationType().getClassName().equals(ModElement.Tag.class.getName())) {
					Class<?> clazz = Class.forName(annotationData.getClassType().getClassName());
					if (clazz.getSuperclass() == TestversionModElements.ModElement.class)
						elements.add((TestversionModElements.ModElement) clazz.getConstructor(this.getClass()).newInstance(this));
				}
			}
		} catch (Exception e) {
			e.printStackTrace();
		}
		Collections.sort(elements);
		elements.forEach(TestversionModElements.ModElement::initElements);
	}

	public void registerSounds(RegistryEvent.Register<net.minecraft.util.SoundEvent> event) {
		for (Map.Entry<ResourceLocation, net.minecraft.util.SoundEvent> sound : sounds.entrySet())
			event.getRegistry().register(sound.getValue().setRegistryName(sound.getKey()));
	}
	private int messageID = 0;
	public <T> void addNetworkMessage(Class<T> messageType, BiConsumer<T, PacketBuffer> encoder, Function<PacketBuffer, T> decoder,
			BiConsumer<T, Supplier<NetworkEvent.Context>> messageConsumer) {
		TestversionMod.PACKET_HANDLER.registerMessage(messageID, messageType, encoder, decoder, messageConsumer);
		messageID++;
	}

	public List<ModElement> getElements() {
		return elements;
	}

	public List<Supplier<Block>> getBlocks() {
		return blocks;
	}

	public List<Supplier<Item>> getItems() {
		return items;
	}

	public List<Supplier<EntityType<?>>> getEntities() {
		return entities;
	}

	public List<Supplier<Enchantment>> getEnchantments() {
		return enchantments;
	}
	public static class ModElement implements Comparable<ModElement> {
		@Retention(RetentionPolicy.RUNTIME)
		public @interface Tag {
		}
		protected final TestversionModElements elements;
		protected final int sortid;
		public ModElement(TestversionModElements elements, int sortid) {
			this.elements = elements;
			this.sortid = sortid;
		}

		public void initElements() {
		}

		public void init(FMLCommonSetupEvent event) {
		}

		public void serverLoad(FMLServerStartingEvent event) {
		}

		@OnlyIn(Dist.CLIENT)
		public void clientLoad(FMLClientSetupEvent event) {
		}

		@Override
		public int compareTo(ModElement other) {
			return this.sortid - other.sortid;
		}
	}
}