Another try

app.py

@@ -148,7 +148,7 @@ def change_leaderboard_category(category):
         value=leaderboard_server.get_leaderboard(category=category),
         visible=True,
         datatype="markdown",
-        headers=None,
+        headers=["Model", "Release", "Type", "# θ (B)", "Average ⬆️"],
     )
 
 def show_modal():