Streamlit : OSError: This app has encountered an error.

Question

ローカル環境では問題ないのですが、streamlitにデプロイした後のページではエラーになります。

OSError: This app has encountered an error. The original error message is redacted to prevent data leaks. Full error details have been recorded in the logs (if you're on Streamlit Cloud, click on 'Manage app' in the lower right of your app).
Traceback:

File "/home/appuser/venv/lib/python3.7/site-packages/streamlit/script_runner.py", line 379, in _run_script
    exec(code, module.__dict__)
File "/app/face_api_streamlit/main.py", line 74, in <module>
    draw_text(result)
File "/app/face_api_streamlit/main.py", line 44, in draw_text
    text, font = get_draw_text(faceDictionary)
File "/app/face_api_streamlit/main.py", line 34, in get_draw_text
    font = ImageFont.truetype('Arial', font_size)
File "/home/appuser/venv/lib/python3.7/site-packages/PIL/ImageFont.py", line 855, in truetype
    return freetype(font)
File "/home/appuser/venv/lib/python3.7/site-packages/PIL/ImageFont.py", line 852, in freetype
    return FreeTypeFont(font, size, index, encoding, layout_engine)
File "/home/appuser/venv/lib/python3.7/site-packages/PIL/ImageFont.py", line 212, in __init__
    font, size, index, encoding, layout_engine=layout_engine

macなのでfontを下記コードに変更してみましたが結果は同じでした。

font = ImageFont.truetype(font='/System/Library/Fonts/Arial', size=20, index=0, encoding='', layout_engine=None)

↑でもエラーのため、下記も試しました。

font_path = '/System/Library/Fonts/Arial'

font = ImageFont.truetype(font=font, size=20, index=0, encoding='', layout_engine=None)

何か、解決策などありましたらご教授お願いいたします。