UnicodeEncodeError: 'gbk' codec can't encode character '\u2081' in position 7091: illegal multibyte sequence

[944613709]

Description: I'm encountering the following error when trying to encode a string with the gbk codec:
UnicodeEncodeError: 'gbk' codec can't encode character '\u2081' in position 7091: illegal multibyte sequence
The running log is here
‘File D:\mycoding\python\SciAgentsDiscovery\ScienceDiscovery\utils.py:511, in research_generation(G, embedding_tokenizer, embedding_model, node_embeddings, generate, generate_graph_expansion, randomness_factor, num_random_waypoints, shortest_path, second_hop, data_dir, save_files, verbatim, keyword_1, keyword_2)
508 res_data['synbio_priority'] = synbio_priority
510 output_pdf_path = f"{data_dir}/output_"
--> 511 fname=markdown_to_pdf(complete_doc, output_pdf_path)
513 df = pd.DataFrame([res_data])
514 df_total = pd.concat([df_total, df], ignore_index=True)

File D:\mycoding\python\SciAgentsDiscovery\ScienceDiscovery\utils.py:100, in markdown_to_pdf(markdown_text, output_pdf_path)
98 # Save the Markdown text to a .md file
99 with open(output_md_path, 'w') as md_file:
--> 100 md_file.write(markdown_text)
102 pdfkit.from_string(full_html, output_pdf_path)
104 return output_pdf_path
’