Update app.py

app.py

@@ -89,7 +89,7 @@ def format_prompt_choose(message, history, model_name, new_models=None):
     if "mixtral" in new_models[model_name].lower():
         return format_prompt_mixtral(message,history)
     else:
-        return format_prompt_default(message,history)
+        return format_prompt_mixtral(message,history)