Update app.py

app.py

@@ -236,6 +236,6 @@ if __name__ == "__main__":
         file.change(fn=to_pdf, inputs=file, outputs=pdf_show)
         change_bu.click(fn=to_markdown, inputs=[file, max_pages, is_ocr, layout_mode, formula_enable, table_enable, language],
                         outputs=[md, md_text, output_file, pdf_show], api_name=False)
-        clear_bu.add([file, md, pdf_show, md_text, output_file, is_ocr, language])
+        clear_bu.add([file, md, pdf_show, md_text, output_file, is_ocr])
 
     demo.launch(ssr_mode=False)