update error

app.py

@@ -794,7 +794,7 @@ def clearall():
     # memory.clear()
     global Filename_Chatbot
     Filename_Chatbot = []
-    return []
+    return [[], gr.update(visible=True), gr.update(visible=False)]
 
 def retry(history3):
     global last_request
@@ -852,9 +852,10 @@ def playsound():
         if Filename_Chatbot.split(".")[1] == 'wav':
             soundfilename = Filename_Chatbot
             print("soundfilename:", soundfilename)
-            return gr.update(value = soundfilename)
+            return None
+            # return gr.update(value = soundfilename)
     except Exception as e:
-        print("error:", e)
+        print("playsound error:", e)
         return None
 
     
@@ -923,8 +924,8 @@ with gr.Blocks() as demo:
             frash_logs = gr.Button("Update Logs ...")
             logs = gr.Textbox(max_lines = 25)
     # upload_button.upload(func_upload_file, [upload_button, main.chatbot], main.chatbot)
-    clear_button.click(clearall, None, chatbot)
-    retry_button.click(retry, chatbot, chatbot)
+    clear_button.click(clearall, None, [chatbot, submit_button, stop_button])
+    retry_button.click(retry, chatbot, chatbot).then(HMI_Wait, None, [submit_button, stop_button])
     # inf1 = inputtext.submit(chathmi3, [inputtext, chatbot], [inputtext, chatbot]).\
     #     then(playsound, None, voice_output)
     # inf1 = inputtext.submit(chathmi3, [inputtext, chatbot], [inputtext, chatbot]).\