diff --git a/OpenTaiko/src/Stages/07.Game/Taiko/CAct演奏Drums背景.cs b/OpenTaiko/src/Stages/07.Game/Taiko/CAct演奏Drums背景.cs
index 7a705017..43d52765 100644
--- a/OpenTaiko/src/Stages/07.Game/Taiko/CAct演奏Drums背景.cs
+++ b/OpenTaiko/src/Stages/07.Game/Taiko/CAct演奏Drums背景.cs
@@ -156,9 +156,9 @@ namespace TJAPlayer3
                     : downDirs[random.Next(0, downDirs.Length)];
 
                 DownScript = new ScriptBG($@"{downPath}{Path.DirectorySeparatorChar}Script.lua");
-                DownScript.Init();
+                DownScript?.Init();
 
-                IsDownNotFound = false;
+                if (DownScript.Exists()) IsDownNotFound = false;
             }
             else
             {
@@ -296,8 +296,8 @@ namespace TJAPlayer3
 
             if (!IsUpNotFound)
             {
-                if (!TJAPlayer3.stage演奏ドラム画面.bPAUSE) UpScript.Update();
-                UpScript.Draw();
+                if (!TJAPlayer3.stage演奏ドラム画面.bPAUSE) UpScript?.Update();
+                UpScript?.Draw();
                 if (TJAPlayer3.stage選曲.n確定された曲の難易度[0] == (int)Difficulty.Tower)
                 {
                     #region [Tower animations variables]
@@ -643,8 +643,8 @@ namespace TJAPlayer3
             {
                 if (!IsDownNotFound)
                 {
-                    if (!TJAPlayer3.stage演奏ドラム画面.bPAUSE) DownScript.Update();
-                    DownScript.Draw();
+                    if (!TJAPlayer3.stage演奏ドラム画面.bPAUSE) DownScript?.Update();
+                    DownScript?.Draw();
                 }
             }