show only to admins

functions.php

add_filter('wpgens_raf_code','gens_raf_code',10,1);
function gens_raf_code($raf_code) {
    if( !current_user_can('manage_options')) {
      return 'Referral code is available only to Editors';
  }
  return $raf_code;
}
add_filter('wpgens_raf_link','gens_raf_link',10,3);
function gens_raf_link($raf_link, $referral_id, $type) {
    if( !current_user_can('manage_options')) {
      return 'Referral link is available only to Editors';
  }
  return $raf_link;
}

add_action('wp','wpgens_custom_account_tabs');
function wpgens_custom_account_tabs(){
	if( !current_user_can('manage_options')) {
	$gens_plugin = WPGens_RAF::instance();
	remove_filter( 'woocommerce_account_menu_items', array($gens_plugin->my_account,'gens_account_menu_item'),10);
	}
}