Port as a number

app.py

@@ -273,8 +273,8 @@ with gr.Blocks() as interface:
         (Peaceful:1.5) and ((calming)) ambient music with [singing:2] bowl and other instruments
         """
     )
-        
+
     if is_space_imported:
         interface.queue(10).launch()
     else:
-        interface.queue(10).launch(server_name = '127.0.0.1', server_port = '6688')
+        interface.queue(10).launch(server_name = '127.0.0.1', server_port = 6688)