Update app.py

app.py

@@ -251,12 +251,11 @@ def user_contact():
         key="user_contact_input"
     )
 
-    if st.button("ادامه", key="start_btn", type="primary"):
-        st.session_state.user_contact = contact_info  # ذخیره اطلاعات
+    if st.button("ادامه", key="continue_contact_btn", type="primary"):  # تغییر کلید
+        st.session_state.user_contact = contact_info
         st.session_state.current_page = "demographic_form"
         st.rerun()
 
-
 def demographic_form():
     """فرم اطلاعات دموگرافیک"""
     with st.form("demographic"):
@@ -448,6 +447,7 @@ def main():
         st.session_state.current_page = "welcome"
         st.session_state.scenario_type = random.choice(["control", "input", "counterfactual"])
         st.session_state.price = 200000  # قیمت ثابت 200 هزار تومان
+        st.session_state.user_contact = None
         st.session_state.demographic_data = None
         st.session_state.transparency_answers = []
         st.session_state.fairness_answers = []