Update app.py

app.py

@@ -422,7 +422,7 @@ async def join(websocket, key):
         
         current_directory = f'projects/{key}/your_project_name/{project_name[0]}'
         # Send the first move, in case the first player already played it.
-        file_structure = await generate_file_structure(base_path)
+        file_structure = await generate_file_structure(current_directory)
         # Receive and process moves from the second player.
         event = {
             "type": "join",