Update app.py

app.py

@@ -86,7 +86,7 @@ with tabs[2]:
     st.header("AIvatar ChatBot")
     
     # Chat history and user input
-    chat_history_ai = st.text_area("Chat History", height=300)
+    chat_history_ai = st.text_area("Chat History", height=300, key=generate_random_key())
     user_input_ai = st.text_input("Your Input")
     
     # Send button