I have the weirdest problem with the language setting at [ wp-config.php ]
I have a WordPress based website, which until yesterday as working perfect. However, suddenly something weird happened. The same page works perfect when the [ wp-config.php ] is set with english, but not when it is set with JAPANESE, it just displays an empty page, empty as showing just the background of the active WordPress Theme a nothing and else.
As I said before that's very weird because until yesterday everything was OK. The site is for Japanese users, so having the dashboard working in english is very troublesome.