Hi gentlemens,

Since i made my upgrade to PHP 7.4 today, my website generates few messages like this one :

Deprecated: Unparenthesized `a ? b : c ? d : e` is deprecated. Use either `(a ? b : c) ? d : e` or `a ? b : (c ? d : e)` 

Can anyone help me oh this please ?  Thanks all.

This is the first line of this error :

return is_customize_preview()  ? 

$classes :

is_active_sidebar( 'sidebar-1' ) ?

$classes :

$classes . ' col-md-offset-2';

}