diff --git a/src-python/controller.py b/src-python/controller.py
index f40a25ae..d5322134 100644
--- a/src-python/controller.py
+++ b/src-python/controller.py
@@ -1136,7 +1136,6 @@ class Controller:
             else:
                 raise ValueError()
         except Exception:
-            errorLogging()
             response = {
                 "status":400,
                 "result":{
@@ -1178,7 +1177,6 @@ class Controller:
             else:
                 raise ValueError()
         except Exception:
-            errorLogging()
             response = {
                 "status":400,
                 "result":{
@@ -1203,7 +1201,6 @@ class Controller:
             else:
                 raise ValueError()
         except Exception:
-            errorLogging()
             response = {
                 "status":400,
                 "result":{
@@ -1228,7 +1225,6 @@ class Controller:
             else:
                 raise ValueError()
         except Exception:
-            errorLogging()
             response = {
                 "status":400,
                 "result":{
@@ -1319,7 +1315,6 @@ class Controller:
             else:
                 raise ValueError()
         except Exception:
-            errorLogging()
             response = {
                 "status":400,
                 "result":{
@@ -1360,7 +1355,6 @@ class Controller:
             else:
                 raise ValueError()
         except Exception:
-            errorLogging()
             response = {
                 "status":400,
                 "result":{
@@ -1385,7 +1379,6 @@ class Controller:
             else:
                 raise ValueError()
         except Exception:
-            errorLogging()
             response = {
                 "status":400,
                 "result":{
@@ -1411,7 +1404,6 @@ class Controller:
             else:
                 raise ValueError()
         except Exception:
-            errorLogging()
             response = {
                 "status":400,
                 "result":{
diff --git a/src-python/models/overlay/overlay_image.py b/src-python/models/overlay/overlay_image.py
index fec4c741..708ad11c 100644
--- a/src-python/models/overlay/overlay_image.py
+++ b/src-python/models/overlay/overlay_image.py
@@ -67,9 +67,16 @@ class OverlayImage:
             font_path = os_path.join(self.root_path, font_family)
             font = ImageFont.truetype(font_path, font_size)
         except Exception:
-            errorLogging()
-            font_path = os_path.join(os_path.dirname(__file__), "..", "..", "..", "fonts", font_family)
-            font = ImageFont.truetype(font_path, font_size)
+            # overlayフォルダから操作している場合
+            if os_path.exists(os_path.join(os_path.dirname(__file__), "..", "..", "..", "fonts", font_family)):
+                font_path = os_path.join(os_path.dirname(__file__), "..", "..", "..", "fonts", font_family)
+                font = ImageFont.truetype(font_path, font_size)
+            elif os_path.exists(os_path.join(os_path.dirname(__file__), "fonts", font_family)):
+                # src-pythonフォルダから操作している場合
+                font_path = os_path.join(os_path.dirname(__file__), "fonts", font_family)
+                font = ImageFont.truetype(font_path, font_size)
+            else:
+                raise FileNotFoundError(f"Font file not found: {font_family}")
 
         text_width = draw.textlength(text, font)
         character_width = text_width // len(text)
@@ -171,9 +178,14 @@ class OverlayImage:
             font_path = os_path.join(self.root_path, font_family)
             font = ImageFont.truetype(font_path, font_size)
         except Exception:
-            errorLogging()
-            font_path = os_path.join(os_path.dirname(__file__), "..", "..", "..", "fonts", font_family)
-            font = ImageFont.truetype(font_path, font_size)
+            if os_path.exists(os_path.join(os_path.dirname(__file__), "..", "..", "..", "fonts", font_family)):
+                font_path = os_path.join(os_path.dirname(__file__), "..", "..", "..", "fonts", font_family)
+                font = ImageFont.truetype(font_path, font_size)
+            elif os_path.exists(os_path.join(os_path.dirname(__file__), "fonts", font_family)):
+                font_path = os_path.join(os_path.dirname(__file__), "fonts", font_family)
+                font = ImageFont.truetype(font_path, font_size)
+            else:
+                raise FileNotFoundError(f"Font file not found: {font_family}")
 
         # 改行を含んだtextの最大の文字数を計算する
         text_width = max(draw.textlength(line, font) for line in text.split("\n"))
@@ -207,9 +219,16 @@ class OverlayImage:
             font_path = os_path.join(self.root_path, self.LANGUAGES["Default"])
             font = ImageFont.truetype(font_path, font_size)
         except Exception:
-            errorLogging()
-            font_path = os_path.join(os_path.dirname(__file__), "..", "..", "..", "fonts", self.LANGUAGES["Default"])
-            font = ImageFont.truetype(font_path, font_size)
+            # overlayフォルダから操作している場合
+            if os_path.exists(os_path.join(os_path.dirname(__file__), "..", "..", "..", "fonts", self.LANGUAGES["Default"])):
+                font_path = os_path.join(os_path.dirname(__file__), "..", "..", "..", "fonts", self.LANGUAGES["Default"])
+                font = ImageFont.truetype(font_path, font_size)
+            elif os_path.exists(os_path.join(os_path.dirname(__file__), "fonts", self.LANGUAGES["Default"])):
+                # src-pythonフォルダから操作している場合
+                font_path = os_path.join(os_path.dirname(__file__), "fonts", self.LANGUAGES["Default"])
+                font = ImageFont.truetype(font_path, font_size)
+            else:
+                raise FileNotFoundError(f"Font file not found: {self.LANGUAGES['Default']}")
 
         text_height = font_size + ui_padding
         text_width = draw.textlength(date_time, font)