Update app.py

app.py

@@ -217,8 +217,8 @@ def generate(
     
         return chat, history, user_message, ""
     except UnknownError :
-        print("The model is currently loading. Please wait a few seconds and retry.")
-        #return "The model is currently loading. Please wait a few seconds and retry.", None, None, ""
+        error_message = "The model is currently loading. Please wait a few seconds and retry."
+        return [(user_message, error_message)], history, user_message, ""
 
 examples = [
     "Use the gradio library to create a calculator. It should take into account the 4 basic operations. A user should be able to enter 2 numbers, choose an operation and get the corresponding result.",