diff --git a/api/src/main/java/net/momirealms/customfishing/api/mechanic/statistic/FishingStatistics.java b/api/src/main/java/net/momirealms/customfishing/api/mechanic/statistic/FishingStatistics.java
index c07df8aa..374c0ecb 100644
--- a/api/src/main/java/net/momirealms/customfishing/api/mechanic/statistic/FishingStatistics.java
+++ b/api/src/main/java/net/momirealms/customfishing/api/mechanic/statistic/FishingStatistics.java
@@ -45,7 +45,7 @@ public interface FishingStatistics {
      * Retrieves the amount of fish caught with the specified ID.
      *
      * @param id the ID of the fish.
-     * @return the amount of fish caught with the specified ID. -1 if not exist.
+     * @return the amount of fish caught with the specified ID. 0 if not exist.
      */
     int getAmount(String id);
 
diff --git a/api/src/main/java/net/momirealms/customfishing/api/mechanic/statistic/FishingStatisticsImpl.java b/api/src/main/java/net/momirealms/customfishing/api/mechanic/statistic/FishingStatisticsImpl.java
index d6a8a5fa..a12386f7 100644
--- a/api/src/main/java/net/momirealms/customfishing/api/mechanic/statistic/FishingStatisticsImpl.java
+++ b/api/src/main/java/net/momirealms/customfishing/api/mechanic/statistic/FishingStatisticsImpl.java
@@ -47,7 +47,7 @@ public class FishingStatisticsImpl implements FishingStatistics {
 
     @Override
     public int getAmount(String id) {
-        return amountMap.getOrDefault(id, -1);
+        return amountMap.getOrDefault(id, 0);
     }
 
     @Override
@@ -70,12 +70,12 @@ public class FishingStatisticsImpl implements FishingStatistics {
 
     @Override
     public float getMaxSize(String id) {
-        return sizeMap.getOrDefault(id, -1f);
+        return sizeMap.getOrDefault(id, 0f);
     }
 
     @Override
     public void setMaxSize(String id, float maxSize) {
-        if (maxSize < 0) maxSize = 0;
+        if (maxSize < 0) return;
         sizeMap.put(id, maxSize);
     }
 
diff --git a/core/src/main/java/net/momirealms/customfishing/bukkit/item/impl/UniversalItemFactory.java b/core/src/main/java/net/momirealms/customfishing/bukkit/item/impl/UniversalItemFactory.java
index e30998e8..80c1a526 100644
--- a/core/src/main/java/net/momirealms/customfishing/bukkit/item/impl/UniversalItemFactory.java
+++ b/core/src/main/java/net/momirealms/customfishing/bukkit/item/impl/UniversalItemFactory.java
@@ -22,14 +22,13 @@ import com.saicone.rtag.tag.TagBase;
 import com.saicone.rtag.tag.TagCompound;
 import com.saicone.rtag.tag.TagList;
 import net.momirealms.customfishing.bukkit.item.BukkitItemFactory;
+import net.momirealms.customfishing.bukkit.util.SkullUtils;
 import net.momirealms.customfishing.common.plugin.CustomFishingPlugin;
 import net.momirealms.customfishing.common.util.Key;
 import org.bukkit.inventory.ItemFlag;
 
-import java.util.ArrayList;
-import java.util.List;
-import java.util.Map;
-import java.util.Optional;
+import java.nio.charset.StandardCharsets;
+import java.util.*;
 
 public class UniversalItemFactory extends BukkitItemFactory {
 
@@ -72,7 +71,11 @@ public class UniversalItemFactory extends BukkitItemFactory {
         if (skullData == null) {
             item.remove("SkullOwner");
         } else {
-            item.set(List.of(Map.of("Value", skullData)), "SkullOwner", "Properties", "textures");
+            item.set(UUID.nameUUIDFromBytes(SkullUtils.identifierFromBase64(skullData).getBytes(StandardCharsets.UTF_8)), "SkullOwner", "Id");
+            item.set(
+                    List.of(Map.of("Value", skullData)),
+                    "SkullOwner", "Properties", "textures"
+            );
         }
     }
 
diff --git a/core/src/main/java/net/momirealms/customfishing/bukkit/util/SkullUtils.java b/core/src/main/java/net/momirealms/customfishing/bukkit/util/SkullUtils.java
new file mode 100644
index 00000000..2c048c19
--- /dev/null
+++ b/core/src/main/java/net/momirealms/customfishing/bukkit/util/SkullUtils.java
@@ -0,0 +1,32 @@
+/*
+ *  Copyright (C) <2024> <XiaoMoMi>
+ *
+ *  This program is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package net.momirealms.customfishing.bukkit.util;
+
+import java.util.Base64;
+
+public class SkullUtils {
+
+    public static String identifierFromBase64(String base64) {
+        byte[] decodedBytes = Base64.getDecoder().decode(base64);
+        String decodedString = new String(decodedBytes);
+        int urlStartIndex = decodedString.indexOf("\"url\":\"") + 7;
+        int urlEndIndex = decodedString.indexOf("\"", urlStartIndex);
+        String textureUrl = decodedString.substring(urlStartIndex, urlEndIndex);
+        return textureUrl.substring(textureUrl.lastIndexOf('/') + 1);
+    }
+}
diff --git a/gradle.properties b/gradle.properties
index 0336f7d3..a9710f2c 100644
--- a/gradle.properties
+++ b/gradle.properties
@@ -1,6 +1,6 @@
 # Project settings
 # Rule: [major update].[feature update].[bug fix]
-project_version=2.2.8
+project_version=2.2.9
 config_version=34
 project_group=net.momirealms