Procedure : Play a sound when an item is retrieved

I'm really sorry, i'm a "cadet" in java ^^' can you help me... again ? :

It's the class of the imports

You talk of that ?

package net.mcreator.morecraftableitems;

import net.minecraftforge.fml.relauncher.SideOnly;
import net.minecraftforge.fml.relauncher.Side;
import net.minecraftforge.fml.common.registry.GameRegistry;
import net.minecraftforge.client.model.ModelLoader;
import net.minecraftforge.client.event.ModelRegistryEvent;

import net.minecraft.world.World;
import net.minecraft.item.ItemStack;
import net.minecraft.item.Item;
import net.minecraft.entity.Entity;
import net.minecraft.client.util.ITooltipFlag;
import net.minecraft.client.renderer.block.model.ModelResourceLocation;
import net.minecraft.block.state.IBlockState;
import net.minecraftforge.event.entity.player.PlayerEvent;
import net.minecraftforge.eventbus.api.SubscribeEvent;

import java.util.List;

@Elementsmorecraftableitems.ModElement.Tag
public class MCreatorBolt extends Elementsmorecraftableitems.ModElement {
	@GameRegistry.ObjectHolder("morecraftableitems:bolt")
	public static final Item block = null;

	public MCreatorBolt(Elementsmorecraftableitems instance) {
		super(instance, 8);
	}

	@Override
	public void initElements() {
		elements.items.add(() -> new ItemCustom());
	}

	    @SubscribeEvent
    public void pickupItem(PlayerEvent.ItemPickupEvent event) {
        if (event.getStack().getItem() == survive.bolt) {
            event.getPlayer().world.playSound(event.getPlayer(), event.getPlayer().getPosition(), (net.minecraft.util.SoundEvent) ForgeRegistries.SOUND_EVENTS.getValue(new ResourceLocation("morecraftableitems:boltcollect2"), SoundCategory.NEUTRAL, 1F, 1F));
        }
    }

	@SideOnly(Side.CLIENT)
	@Override
	public void registerModels(ModelRegistryEvent event) {
		ModelLoader.setCustomModelResourceLocation(block, 0, new ModelResourceLocation("morecraftableitems:bolt", "inventory"));
	}

	public static class ItemCustom extends Item {
		public ItemCustom() {
			setMaxDamage(0);
			maxStackSize = 1000;
			setUnlocalizedName("bolt");
			setRegistryName("bolt");
			setCreativeTab(MCreatorRatchetClank.tab);
		}

		@Override
		public int getItemEnchantability() {
			return 0;
		}

		@Override
		public int getMaxItemUseDuration(ItemStack itemstack) {
			return 0;
		}

		@Override
		public float getDestroySpeed(ItemStack par1ItemStack, IBlockState par2Block) {
			return 1F;
		}

		@Override
		public void addInformation(ItemStack itemstack, World world, List<String> list, ITooltipFlag flag) {
			super.addInformation(itemstack, world, list, flag);
			list.add("La monaie classique du jeu, Elle equivaut 1 lingot en fer");
		}

		@Override
		public void onUpdate(ItemStack itemstack, World world, Entity entity, int slot, boolean par5) {
			super.onUpdate(itemstack, world, entity, slot, par5);
			int x = (int) entity.posX;
			int y = (int) entity.posY;
			int z = (int) entity.posZ;
			{
				java.util.HashMap<String, Object> $_dependencies = new java.util.HashMap<>();
				$_dependencies.put("entity", entity);
				MCreatorBoltItemInInventoryTick.executeProcedure($_dependencies);
			}
		}
	}
}

I use 1.12.2

What news ?