added stepback-Prompting

app.py

@@ -341,7 +341,7 @@ class BSIChatbot:
                           {"role": "user", "content": query}],
                 model=self.llm_remote_model,
             )
-        return Answer
+        return chat_completion.choices[0].message.content
 
     def stepBackPrompt(self, query):
         systemPrompt = """