fix

chess_image_to_fen_tool.py

@@ -23,7 +23,7 @@ def chess_image_to_fen(image_path_in_base64:str, current_player: Literal["black"
     if current_player not in ["black", "white"]:
         raise ValueError("current_player must be 'black' or 'white'")
     
-    base64_image = get_base64(chessboard_image_base64_path)
+    base64_image = get_base64(image_path_in_base64)
 
     if not base64_image:
         raise ValueError("Failed to encode image to base64.")