Update app.py

app.py

@@ -164,7 +164,7 @@ import pandas as pd
 # Function to generate leaderboard data
 def generate_leaderboard():
     elo_ratings = get_user_elo_ratings()  # Assuming this function returns a dict of {bot_name: elo_score}
-    leaderboard_data = pd.DataFrame(list(elo_ratings.items()), columns=['Chatbot', 'ELO Score'])
+    leaderboard_data = pd.DataFrame(list(elo_ratings.iter()), columns=['Chatbot', 'ELO Score'])
     leaderboard_data = leaderboard_data.sort_values('ELO Score', ascending=False)
     return leaderboard_data