correct playsound

app.py

@@ -792,10 +792,13 @@ def ClearText():
 
 def playsound():
     global Filename_Chatbot
-    if Filename_Chatbot.split(".")[1] == 'wav':
-        soundfilename = Filename_Chatbot
-        return soundfilename
-
+    try:
+        if Filename_Chatbot.split(".")[1] == 'wav':
+            soundfilename = Filename_Chatbot
+            return soundfilename
+    except:
+        pass
+    
 def HMI_Runing():
     return [gr.update(visible=False), gr.update(visible=True)]