diff --git a/src/main.py b/src/main.py
index 133ce66f..70bbc778 100644
--- a/src/main.py
+++ b/src/main.py
@@ -4,10 +4,9 @@ import uvicorn
 
 from module.api import router
 from module.conf import settings, setup_logger
-from module.core import reset_log
 
 log_level = logging.DEBUG if settings.log.debug_enable else logging.INFO
-setup_logger(log_level)
+setup_logger(log_level, reset=True)
 logger = logging.getLogger(__name__)
 
 
@@ -21,10 +20,8 @@ uvicorn_logging_config = {
     },
 }}
 
+
 if __name__ == "__main__":
-    if not os.path.isdir("data"):
-        os.mkdir("data")
-    reset_log()
     uvicorn.run(
         router, host="0.0.0.0", port=settings.program.webui_port,
         log_config=uvicorn_logging_config,
diff --git a/src/module/conf/log.py b/src/module/conf/log.py
index b4e6d0a1..2c1d1f8f 100644
--- a/src/module/conf/log.py
+++ b/src/module/conf/log.py
@@ -1,9 +1,14 @@
+import os
 import logging
 
 LOG_PATH = "data/log.txt"
 
 
-def setup_logger(level: int = logging.INFO):
+def setup_logger(level: int = logging.INFO, reset: bool = False):
+    if not os.path.isdir("data"):
+        os.mkdir("data")
+    if reset and os.path.isfile(LOG_PATH):
+        os.remove(LOG_PATH)
     logging.addLevelName(logging.DEBUG, "DEBUG:")
     logging.addLevelName(logging.INFO, "INFO:")
     logging.addLevelName(logging.WARNING, "WARNING:")
diff --git a/src/module/core/sub_thread.py b/src/module/core/sub_thread.py
index 6c6a36f9..cfee790c 100644
--- a/src/module/core/sub_thread.py
+++ b/src/module/core/sub_thread.py
@@ -17,11 +17,6 @@ logger = logging.getLogger(__name__)
 stop_event = threading.Event()
 
 
-def reset_log():
-    if os.path.isfile(LOG_PATH):
-        os.remove(LOG_PATH)
-
-
 def rss_loop(stop_event):
     rss_analyser = RSSAnalyser()
     rss_link = settings.rss_link()
diff --git a/src/module/manager/renamer.py b/src/module/manager/renamer.py
index 57811713..1d028d02 100644
--- a/src/module/manager/renamer.py
+++ b/src/module/manager/renamer.py
@@ -125,17 +125,18 @@ class Renamer(DownloadClient):
                     torrent_path=media_path,
                     season=season,
                 )
-                new_path = self.gen_path(ep, bangumi_name, method=method)
-                if media_path != new_path:
-                    renamed = self.rename_torrent_file(
-                        _hash=_hash, old_path=media_path, new_path=new_path
-                    )
-                    if not renamed:
-                        logger.warning(f"{media_path} rename failed")
-                        # Delete bad torrent.
-                        if settings.bangumi_manage.remove_bad_torrent:
-                            self.delete_torrent(_hash)
-                            break
+                if ep:
+                    new_path = self.gen_path(ep, bangumi_name, method=method)
+                    if media_path != new_path:
+                        renamed = self.rename_torrent_file(
+                            _hash=_hash, old_path=media_path, new_path=new_path
+                        )
+                        if not renamed:
+                            logger.warning(f"{media_path} rename failed")
+                            # Delete bad torrent.
+                            if settings.bangumi_manage.remove_bad_torrent:
+                                self.delete_torrent(_hash)
+                                break
 
     def rename_subtitles(
         self,
@@ -154,13 +155,14 @@ class Renamer(DownloadClient):
                 season=season,
                 file_type="subtitle",
             )
-            new_path = self.gen_path(sub, bangumi_name, method=method)
-            if subtitle_path != new_path:
-                renamed = self.rename_torrent_file(
-                    _hash=_hash, old_path=subtitle_path, new_path=new_path
-                )
-                if not renamed:
-                    logger.warning(f"{subtitle_path} rename failed")
+            if sub:
+                new_path = self.gen_path(sub, bangumi_name, method=method)
+                if subtitle_path != new_path:
+                    renamed = self.rename_torrent_file(
+                        _hash=_hash, old_path=subtitle_path, new_path=new_path
+                    )
+                    if not renamed:
+                        logger.warning(f"{subtitle_path} rename failed")
 
     @staticmethod
     def get_season_info(save_path: str, download_path: str):