Update app.py

app.py

@@ -1350,7 +1350,7 @@ def user_contact():
             "pricing_method": st.session_state.pricing_method,
             "price_increase": st.session_state.price_increase,
             "explanation_received": st.session_state.explanation_received,
-            "explanation_type": st.session_state.explanation_type if st.session_state.explanation_received == "بله" else "N/A",
+            "explanation_type": st.session_state.get("explanation_type", "N/A"),
             **st.session_state.demographic_data,
             **st.session_state.answers  # اضافه کردن تمام پاسخ‌های لیکرت
         }