Update app.py

app.py

@@ -382,8 +382,8 @@ def fonc_start(id_session,id_module):
     return result
 
 def test_start(o):
-    #return gr.Image(None)
-    return None
+    return gr.Image(None)
+    #return None
 
 def make_me():
         with gr.Column():