Update app.py

app.py

@@ -272,7 +272,7 @@ with gradio.Blocks() as synthesis_demo2:
     
 with gradio.Blocks() as synthesis_demo3:
     with gradio.Row():
-        perf = gradio.DataFrame(headers=['Surge', 'Heave', 'Pitch'], value=numpy.zeros((64, 3)).to_list())
+        perf = gradio.DataFrame(headers=['Surge', 'Heave', 'Pitch'], value=numpy.zeros((64, 3)).tolist())
 
     with gradio.Row():
         btn2 = gradio.Button("Synthesize Geometry")