Update app.py

app.py

@@ -41,7 +41,7 @@ def initialize_llm():
 
     
 # Create the RetrievalQA chain
-qa_chain = RetrievalQA(llm=llm, retriever=retriever)
+qa_chain = RetrievalQA(llm=initialize_llm, retriever=retriever)
 
 # --- Gradio Interface ---