conflit with add_theme_support( ‘woocommerce’ );

hello I add the code to display review of the blow I lost the posting of QUESTIONS AND ANSWERS
Here is my code
`
remove_filter ( ‘woocommerce_product_tabs’, array( YITH_WooCommerce_Question_Answer::get_instance(), ‘show_question_answer_tab’ ), 20 );
if (class_exists(‘YITH_WooCommerce_Question_Answer’)){
if (!function_exists(‘yith_ywqa_show_questions_and_answer’)){
function yith_ywqa_show_questions_and_answer(){
$instance = YITH_WooCommerce_Question_Answer::get_instance();
$instance->show_question_answer_template();
}
add_action ( ‘woocommerce_after_single_product_summary’, ‘yith_ywqa_show_questions_and_answer’ );
}
}
function mytheme_add_woocommerce_support() {
add_theme_support( ‘woocommerce’ );
}
add_action( ‘after_setup_theme’, ‘mytheme_add_woocommerce_support’ );