Update app.py

app.py

@@ -295,11 +295,11 @@ def demo():
         # Chatbot events
         msg.submit(conversation, \
             inputs=[qa_chain, msg, chatbot], \
-            outputs=[qa_chain, msg, chatbot, doc_source1, source1_page, doc_source2, source2_page], \
+            outputs=[qa_chain, msg, chatbot, doc_source1, source1_page], \
             queue=False)
         submit_btn.click(conversation, \
             inputs=[qa_chain, msg, chatbot], \
-            outputs=[qa_chain, msg, chatbot, doc_source1, source1_page, doc_source2, source2_page], \
+            outputs=[qa_chain, msg, chatbot, doc_source1, source1_page], \
             queue=False)
         clear_btn.click(lambda:[None,"",0,"",0], \
             inputs=None, \