Hi redisztribucio,
I’m sorry for my late response; I hope this answer will still help you
I’d avoid to change plugin’s files directly
Indeed, I’d rather use yith_wcbr_taxonomy_rewrite filter, that lets you customize rewrite slug for brand taxonomy
EG, you could add something similar to functions.php file of your theme
if( defined( 'YITH_WCBR' ) && ! function_exists( 'yith_wcbr_change_rewrite_rule' ) ){
function yith_wcbr_change_rewrite_rule( $rewrite ){
return 'something';
}
add_filter( 'yith_wcbr_taxonomy_rewrite', 'yith_wcbr_change_rewrite_rule' );
}
Please, don’t forget to regenerate your permalinks after you added this code, simply navigating to WP Dashboard -> Settings -> Permalinks and saving your options as they are
Have a nice day ??