Theme translation not applying

The problem was more trivial then expected.

The function thf_setup() was already defined and hooked in the theme’s functions.php so I just added the load_theme_textdomain call to that function instead of declaring a new one (which would also be duplicated).

Hata!: SQLSTATE[HY000] [1045] Access denied for user 'divattrend_liink'@'localhost' (using password: YES)