Try fix empty box, and print debug info

app.py

@@ -42,11 +42,12 @@ st.markdown(
     unsafe_allow_html=True
 )
 
+placeholder = st.empty()
 # Define the placeholder globally (outside columns)
 if st.session_state and st.session_state.user_input:
-    placeholder = st.session_state.user_input
+    placeholder.markdown(f"session: {user_input}")
+    st.write("session: " + st.session_state.user_input)
 else:
-    placeholder = st.empty()
     placeholder.markdown(f'<div class="scrollable-div"><p>Welcome! I am your Adrega AI assistant</p></div>', unsafe_allow_html=True)
 
 def handle_submit():