Update app.py

app.py

@@ -41,8 +41,8 @@ def submit_model(task, datasets, hyp_file, submitted_by, model_id, token):
     leaderboard_df = server.get_leaderboard()
     if len(leaderboard_df) > 0:
         existing = leaderboard_df[
-            (leaderboard_df["submitted_by"] == submitted_by.strip()) &
-            (leaderboard_df["model_id"] == model_id.strip())
+            (leaderboard_df["Submitted by"] == submitted_by.strip()) &
+            (leaderboard_df["Model ID"] == model_id.strip())
         ]
         if not existing.empty:
             return gr.update(value="❌ A submission with this name and model ID already exists.", visible=True), \