diff --git a/Gameton-06/Assets/Gameton/Scripts/Backend/BackendAuthManager.cs b/Gameton-06/Assets/Gameton/Scripts/Backend/BackendAuthManager.cs
index 1a9d51fd..42116971 100644
--- a/Gameton-06/Assets/Gameton/Scripts/Backend/BackendAuthManager.cs
+++ b/Gameton-06/Assets/Gameton/Scripts/Backend/BackendAuthManager.cs
@@ -35,7 +35,7 @@ namespace TON
             {
                 if (callback.IsSuccess())
                 {
-                    Debug.Log("자동 로그인 성공!");
+                    Debug.Log("자동 로그인 성공! " + customID);
                     IsLoggedIn = true;
                     OnLoginComplete?.Invoke(true, "로그인 성공");
                 }
diff --git a/Gameton-06/Assets/Gameton/Scripts/Backend/BackendRankDataManager.cs b/Gameton-06/Assets/Gameton/Scripts/Backend/BackendRankDataManager.cs
index f7e45697..99461b7b 100644
--- a/Gameton-06/Assets/Gameton/Scripts/Backend/BackendRankDataManager.cs
+++ b/Gameton-06/Assets/Gameton/Scripts/Backend/BackendRankDataManager.cs
@@ -77,6 +77,11 @@ namespace TON
         /// </summary>
         private void InsertInitData(ClearData clearData, System.Action onComplete = null)
         {
+            if (PlayerDataManager.Singleton.player == null)
+            {
+                return;
+            }
+
             Param param = new Param();
             param.Add("score", clearData.score);
             param.Add("wave", clearData.wave);