prestashop the [Shop Nam] can`t remove in the subject of Order confirm email.

[HU JIN]

 

the subject of order confirm email includes the shop name in prestashop system(8.1.2).

in backoffice, the "PS_MAIL_SUBJECT_PREFIX" config did set in disable.

after that, In english frontend version, the subject of order confirm email don`t include the shop name.

But in is not english, btw, in other language version, it includes the shop name yet.

Also although the classes/Mail.php class did override(override.png file), but the [shop name] of order confirm email subject don`t remove on no english version.

i attached the image file.

the "english.png" show that the [shop name] remove in subject of order confirm email.

but other "other lang".pnp show that it doesn`t remove.

what is the resolve way?
Pls help me.!!!!