Can you improve support for Chinese?

I’m the developer of the app √Root Korean: A Hanja Dictionary.

My app crashes often and I think that reason for these crashes is an error or errors with the encoding of Chinese.

For example, in DAB’s ‘Languages’ tab, when I click on the ‘Characters’ tab for the language ‘Chinese [zh-Hant]’, I receive the error message, “The font 'DejaVu Sans Condensed cannot display the following characters.”

If I change the font for ‘Chinese [zh-Hant]’ to ‘Gentium Plus (Full)’ and click on the ‘Characters’ tab for the language ‘Chinese [zh-Hant]’, then I receive the error message, “The font ‘Gentium Plus’ cannot display the following characters.”

If I change the font for ‘Chinese [zh-Hant]’ to ‘Noto Sans’ and click on the ‘Characters’ tab for the language ‘Chinese [zh-Hant]’, then I receive the error message, “The font ‘Noto Sans’ cannot display the following characters.”

In the next update, can you improve support for Chinese?