two variables had a same name by mistake

app.py

@@ -158,7 +158,7 @@ with gr.Blocks() as demo:
         gr.Markdown("```python\new_df.to_excel(YOUR_NEW_FILE)\nreturn YOUR_NEW_FILE\n```")
 
         btn_run_code = gr.Button()
-        df_output = gr.DataFrame(interactive=False)
+        df_output_code = gr.DataFrame(interactive=False)
         btn_export_df = gr.Button('Export df as excel')
     st_filename = gr.State()
     
@@ -186,8 +186,8 @@ with gr.Blocks() as demo:
     
     btn_chart.click(create_bar_plot, inputs=[fi_excel, dd_label1, dd_label2], outputs=[plt_figure])
 
-    btn_run_code.click(run_code, inputs=[fi_excel, cd_code], outputs=[df_output])
-    btn_export_df.click(export_df, inputs=[df_output, st_filename], outputs=fi_excel)
+    btn_run_code.click(run_code, inputs=[fi_excel, cd_code], outputs=[df_output_code])
+    btn_export_df.click(export_df, inputs=[df_output_code, st_filename], outputs=fi_excel)
     
     
     btn_overall.click(generate_company_chart,inputs=[fi_excel], outputs=[plt_chart])