diff --git a/src/main/java/me/chayapak1/chomensbot_mabe/Configuration.java b/src/main/java/me/chayapak1/chomensbot_mabe/Configuration.java
index 21678b6..c025772 100644
--- a/src/main/java/me/chayapak1/chomensbot_mabe/Configuration.java
+++ b/src/main/java/me/chayapak1/chomensbot_mabe/Configuration.java
@@ -13,7 +13,7 @@ public class Configuration {
 
     public static class Core {
         @Getter public int layers = 3;
-        @Getter public int refillInterval = 60 * 1000;
+//        @Getter public int refillInterval = 60 * 1000;
         @Getter public String customName = "[{\"text\":\"ChomeNS \",\"color\":\"yellow\"},{\"text\":\"Core\",\"color\":\"green\"},{\"text\":\"™\",\"color\":\"gold\"}]";
     }
 
diff --git a/src/main/java/me/chayapak1/chomensbot_mabe/Main.java b/src/main/java/me/chayapak1/chomensbot_mabe/Main.java
index f8b483a..52f7b1a 100644
--- a/src/main/java/me/chayapak1/chomensbot_mabe/Main.java
+++ b/src/main/java/me/chayapak1/chomensbot_mabe/Main.java
@@ -7,7 +7,6 @@ import org.yaml.snakeyaml.constructor.Constructor;
 import java.io.*;
 import java.util.ArrayList;
 import java.util.List;
-import java.util.Map;
 import java.util.concurrent.CountDownLatch;
 
 public class Main {
diff --git a/src/main/java/me/chayapak1/chomensbot_mabe/plugins/CorePlugin.java b/src/main/java/me/chayapak1/chomensbot_mabe/plugins/CorePlugin.java
index 1cae8b1..291506b 100644
--- a/src/main/java/me/chayapak1/chomensbot_mabe/plugins/CorePlugin.java
+++ b/src/main/java/me/chayapak1/chomensbot_mabe/plugins/CorePlugin.java
@@ -1,18 +1,7 @@
 package me.chayapak1.chomensbot_mabe.plugins;
 
-import com.github.steveice10.mc.protocol.data.game.entity.metadata.ItemStack;
-import com.github.steveice10.mc.protocol.data.game.entity.object.Direction;
-import com.github.steveice10.mc.protocol.data.game.entity.player.Hand;
-import com.github.steveice10.mc.protocol.data.game.entity.player.PlayerAction;
 import com.github.steveice10.mc.protocol.data.game.level.block.CommandBlockMode;
 import com.github.steveice10.mc.protocol.packet.ingame.serverbound.inventory.ServerboundSetCommandBlockPacket;
-import com.github.steveice10.mc.protocol.packet.ingame.serverbound.inventory.ServerboundSetCreativeModeSlotPacket;
-import com.github.steveice10.mc.protocol.packet.ingame.serverbound.player.ServerboundPlayerActionPacket;
-import com.github.steveice10.mc.protocol.packet.ingame.serverbound.player.ServerboundUseItemOnPacket;
-import com.github.steveice10.opennbt.tag.builtin.ByteTag;
-import com.github.steveice10.opennbt.tag.builtin.CompoundTag;
-import com.github.steveice10.opennbt.tag.builtin.StringTag;
-import com.github.steveice10.packetlib.Session;
 import com.nukkitx.math.vector.Vector3i;
 import lombok.Getter;
 import me.chayapak1.chomensbot_mabe.Bot;
@@ -28,7 +17,7 @@ public class CorePlugin extends PositionPlugin.PositionListener {
     @Getter private boolean ready = false;
 
     public final Vector3i coreStart = Vector3i.from(0, 0, 0);
-    public final Vector3i coreEnd = Vector3i.from(15, 2, 15);
+    public Vector3i coreEnd;
 
     public Vector3i origin;
 
@@ -93,6 +82,7 @@ public class CorePlugin extends PositionPlugin.PositionListener {
 
     @Override
     public void positionChange (Vector3i position) {
+        coreEnd = Vector3i.from(15, bot.config().core().layers() - 1, 15);
         origin = Vector3i.from(
                 bot.position().position().getX(),
                 0,
diff --git a/src/main/resources/default-config.yml b/src/main/resources/default-config.yml
index 5a5e464..a3f05bb 100644
--- a/src/main/resources/default-config.yml
+++ b/src/main/resources/default-config.yml
@@ -12,16 +12,16 @@ selfCare:
   checkInterval: 1000,
 
   # vanilla
-  op: true,
-  gamemode: true,
-  endCredits: true,
+  op: true
+  gamemode: true
+  endCredits: true
 
   # essentials
-  cspy: true,
-  vanish: true,
-  nickname: true,
-  socialspy: true,
-  mute: true,
+  cspy: true
+  vanish: true
+  nickname: true
+  socialspy: true
+  mute: true
 
   # extras
   prefix: true