League of Legends Japanese clothes can't land, people are in Japan.

There are basically only a few reasons for the problems in Japanese and Korean games:

Your account has not passed the verification such as mobile phone ID card.

Those certifications on your account have expired and need to be re-certified.

There is something wrong with the game client file, which needs to be downloaded and installed again.

Some Korean games will be banned even if you have a Korean IP ID card but the operating system is not Korean.