Fixed id-awesome-header null selector. Wrap call of class in ACF/Init and move set selector after init method.

id-awesome-header-fixes

add_action('acf/init', 'ini_acf_func');
function ini_acf_func(){
if ( function_exists( 'get_field' ) ) :

    $ID_Awesome_Header = new ID_Awesome_Header();
    $ID_Awesome_Header -> id_add_options_sub_page( 'id-awesome-header-module' );
    $ID_Awesome_Header -> add_theme_support( array( 'post', 'page', 'product' ) );
    $ID_Awesome_Header -> init();
    
    // move set selector after init to fixed null value of settings id.
    // 10/05/2023
    $ID_Awesome_Header -> set_selector( get_field( 'selector', $ID_Awesome_Header -> settings_id ) );

endif;
}