Finally it works

app.py

@@ -214,14 +214,14 @@ with gr.Blocks(theme=gr.themes.Soft(text_size=text_md), css=custom_css) as main:
                 with gr.Row():
                     category_of_tasks = gr.Dropdown(
                         choices=[leaderboard_server.tasks_category_overall] + list(leaderboard_server.tasks_categories),
-                        value=list(leaderboard_server.tasks_categories)[0],
-                        label="Category of benchmark",
+                        value=leaderboard_server.tasks_category_overall,
+                        label="Category of benchmarks",
                         interactive=True,
                     )
                 
                 with gr.Row():
                     results_table = gr.DataFrame(
-                        leaderboard_server.get_leaderboard(category=list(leaderboard_server.tasks_categories)[0]),
+                        leaderboard_server.get_leaderboard(),
                         interactive=False,
                         label=None,
                         visible=True,