Please be more careful at en-ja translation.

May be the doc may say that the Japanese version is the actual original. This does not mean that Japanese or English cannot be fixed, but that the original project manager should be notified directly, using their support contact listed on the Project page. Not that the project seems lso to manage the Chinese version (not sure if thisi sin, traditional or Simplified Chinese), possibly by some other memebers of their developer team. We don't have lot of communciation from them, jsut some comments in their repository. This project has a very small team, and not used in lot of places, so may be they woudl welcome some help, and suggestions, possibly some additional developers. However we cannot decide for them here.