fix bugs after update

app.py

@@ -315,8 +315,8 @@ with gr.Blocks(theme='WeixuanYuan/Soft_dark') as demo:
             in_video = gr.PlayableVideo(label="Input Video", elem_id='input-video', format='mp4', width=400, height=400, interactive=True)
             
     with gr.Row():
-        run_button = gr.Button(label="Run", elem_id='run-button', scale=1)
-        api_dummy_button = gr.Button(label="Run (No Viz)", elem_id='count-only', visible=False, scale=2)
+        run_button = gr.Button(value="Run", elem_id='run-button', scale=1)
+        api_dummy_button = gr.Button(value="Run (No Viz)", elem_id='count-only', visible=False, scale=2)
         count_only = gr.Checkbox(label="Count Only", visible=False)
         api_token = gr.Textbox(label="API Key", elem_id='api-token', visible=False)