diff --git a/src/main/java/top/r3944realms/lib39/util/GameProfileHelper.java b/src/main/java/top/r3944realms/lib39/util/GameProfileHelper.java
index f364f10..b42a85c 100644
--- a/src/main/java/top/r3944realms/lib39/util/GameProfileHelper.java
+++ b/src/main/java/top/r3944realms/lib39/util/GameProfileHelper.java
@@ -13,6 +13,8 @@ import net.minecraft.nbt.NbtUtils;
 import net.minecraft.resources.ResourceLocation;
 import net.minecraft.world.entity.player.Player;
 import net.minecraft.world.item.ItemStack;
+import net.minecraftforge.api.distmarker.Dist;
+import net.minecraftforge.api.distmarker.OnlyIn;
 import org.jetbrains.annotations.NotNull;
 import org.jetbrains.annotations.Nullable;
 import top.r3944realms.lib39.util.nbt.NBTReader;
@@ -31,10 +33,6 @@ public class GameProfileHelper {
     public static final String TAG_BE = "BlockEntityTag";
     public static final String TAG_OWN_PROFILE = "OwnerProfile";
 
-    /**
-     * The constant DEFAULT.
-     */
-    public static ResourceLocation DEFAULT = DefaultPlayerSkin.getDefaultSkin();
 
     /**
      * Gets skin texture.
@@ -42,9 +40,10 @@ public class GameProfileHelper {
      * @param gameProfile the game profile
      * @return the skin texture
      */
+    @OnlyIn(Dist.CLIENT)
     public static ResourceLocation getSkinTexture(@Nullable GameProfile gameProfile) {
         if (gameProfile == null) {
-            return DEFAULT;
+            return DefaultPlayerSkin.getDefaultSkin();
         }
         return resolveSkinTexture(gameProfile);
     }
@@ -55,6 +54,7 @@ public class GameProfileHelper {
      * @param gameProfile the game profile
      * @return the resource location
      */
+    @OnlyIn(Dist.CLIENT)
     public static @NotNull ResourceLocation resolveSkinTexture(@NotNull GameProfile gameProfile) {
         Minecraft minecraft = Minecraft.getInstance();
         return minecraft.getSkinManager()
@@ -71,6 +71,7 @@ public class GameProfileHelper {
     }
 
     // 客户端判断
+    @OnlyIn(Dist.CLIENT)
     private static boolean hasSlimArmsClient(Player player) {
         if (player instanceof AbstractClientPlayer clientPlayer) {
             PlayerInfo playerInfo = Objects.requireNonNull(Minecraft.getInstance()
@@ -105,6 +106,7 @@ public class GameProfileHelper {
     }
 
     // 获取皮肤模型名称
+    @OnlyIn(Dist.CLIENT)
     public static @NotNull String getSkinModelName(@NotNull Player player) {
         if (player.level().isClientSide && player instanceof AbstractClientPlayer) {
             PlayerInfo info = Objects.requireNonNull(Minecraft.getInstance().getConnection())