Cannot show Chinese characters correctly

Dear Musescore team:

I am the user from Taiwan. The Chinese characters can be shown on the software in my laptop, but If I uploaded the sheet to this website, the Chinese characters are shown just several squares, and so as when it is uploaded to YouTube.
Since there are also some users are Chinese users (including Taiwan, Mainland China, HK, Macao, and even Malaysia and Singapore), I hope you can fix this error as soon as possible. Thanks!