fix

Comics/_utils/utils.py

@@ -923,7 +923,7 @@ class oldUtils:
         if os.path.exists(folder):
             file_names = [f.name for f in pathlib.Path(folder).iterdir() if f.is_file()]
         else:
-            return None
+            return [] 
         old_item = []
         for file_name in file_names:
             file_split = file_name.split(".")