Update app.py

app.py

@@ -342,9 +342,11 @@ def ask_question(question, temperature, top_p, repetition_penalty, web_search):
         
         answer = generate_chunked_response(model, formatted_prompt)
     else:
-        if database is None:
+        if not os.path.exists("faiss_database"):
             return "No documents available. Please upload documents or enable web search to answer questions."
 
+        database = FAISS.load_local("faiss_database", embed, allow_dangerous_deserialization=True)
+
         history_str = "\n".join([f"Q: {item['question']}\nA: {item['answer']}" for item in conversation_history])
 
         if is_related_to_history(question, conversation_history):