Update app.py

app.py

@@ -921,9 +921,6 @@ def create_game(host=None, topics=[], num_questions=5, auto_close=True, ai_topic
 # PLAY PAGE
 # -------------------------
 def play_page():
-    import time, json
-    import streamlit as st
-
     gid = st.session_state.get("active_game_id")
     uname = st.session_state.get("username")
 
@@ -970,7 +967,7 @@ def play_page():
     st.subheader(f"Question {idx + 1}/{len(questions)}")
     st.write(q["question"])
 
-    start_time = st.session_state.question_started_at
+    start_time = st.session_state.get("question_started_at")
     elapsed = int(time.time() - start_time)
     time_limit = 15
     st.markdown(f"**⏱ Time left:** {max(0, time_limit - elapsed)} seconds")