Update app.py

app.py

@@ -110,7 +110,7 @@ def respond(message, history):
         return "", new_history
     else:
         with get_openai_callback() as cb:
-            answer = qa_chain.invoke({"input": message})
+            answer = qa_chain.invoke(message)
         #answer = qa_chain.invoke(message)
         docs = retriever.invoke(message)
         refs = [f"Page {d.metadata.get('page', 'N/A')}" for d in docs]