우선은 코스모스팜 회원관리 플러그인은 코드를 수정해보시겠어요?

FTP로 접속해서 /wp-content/plugins/cosmosfarm-members/class/Cosmosfarm_Members_Privacy_Blind_On.class.php 파일에

아래의 코드를 찾아서

public function current_screen(){
	$privacy_blind_on = get_option('cosmosfarm_members_privacy_blind_on', '');
	
	if($privacy_blind_on){
		$current_screen = get_current_screen();
		
		if($current_screen->id == 'users'){
			add_filter('user_login', array($this, 'user_login'), 99, 3);
			add_filter('user_email', array($this, 'user_email'), 99, 3);
		}
		
		if($current_screen->id == 'toplevel_page_cosmosfarm_subscription_order' && !isset($_GET['order_id'])){
			add_filter('cosmosfarm_members_subscription_order_buyer_name', array($this, 'order_buyer_name'), 99, 2);
			add_filter('cosmosfarm_members_subscription_order_buyer_email', array($this, 'order_buyer_email'), 99, 2);
			add_filter('cosmosfarm_members_subscription_order_buyer_tel', array($this, 'order_buyer_tel'), 99, 2);
		}
		
		add_filter('manage_cosmosfarm_members_activity_history_columns', array($this, 'activity_history_columns'), 99, 1);
	}
}

public function privacy_blind_on_field(){
	register_setting('general', 'cosmosfarm_members_privacy_blind_on', array(
		'type' => 'string',
		'sanitize_callback' => 'sanitize_text_field',
		'default' => ''
	));
	
	add_settings_field(
		'cosmosfarm_members_privacy_blind_on',
		'사이트 내 개인정보 표시',
		array($this, 'privacy_blind_on_field_html'),
		'general',
		'default',
		array('label_for'=>'cosmosfarm_members_privacy_blind_on')
	);
	
	add_filter('manage_users_custom_column',  array($this, 'users_custom_column'), 99, 3);
}

아래의 코드로 교체해보세요.

public function current_screen(){
	$privacy_blind_on = get_option('cosmosfarm_members_privacy_blind_on', '');
	
	if($privacy_blind_on){
		$current_screen = get_current_screen();
		
		if($current_screen->id == 'users'){
			add_filter('user_login', array($this, 'user_login'), 99, 3);
			add_filter('user_email', array($this, 'user_email'), 99, 3);
			add_filter('manage_users_custom_column',  array($this, 'users_custom_column'), 99, 3);
		}
		
		if($current_screen->id == 'toplevel_page_cosmosfarm_subscription_order' && !isset($_GET['order_id'])){
			add_filter('cosmosfarm_members_subscription_order_buyer_name', array($this, 'order_buyer_name'), 99, 2);
			add_filter('cosmosfarm_members_subscription_order_buyer_email', array($this, 'order_buyer_email'), 99, 2);
			add_filter('cosmosfarm_members_subscription_order_buyer_tel', array($this, 'order_buyer_tel'), 99, 2);
		}
		
		add_filter('manage_cosmosfarm_members_activity_history_columns', array($this, 'activity_history_columns'), 99, 1);
	}
}

public function privacy_blind_on_field(){
	register_setting('general', 'cosmosfarm_members_privacy_blind_on', array(
		'type' => 'string',
		'sanitize_callback' => 'sanitize_text_field',
		'default' => ''
	));
	
	add_settings_field(
		'cosmosfarm_members_privacy_blind_on',
		'사이트 내 개인정보 표시',
		array($this, 'privacy_blind_on_field_html'),
		'general',
		'default',
		array('label_for'=>'cosmosfarm_members_privacy_blind_on')
	);
}

워드프레스 관리자 -> 설정 -> 일반 페이지에서

사이트 내 개인정보 표시 설정이 표시로 되어있을 경우 정상적으로 표시됩니다.

위의 코드는 다음 업데이트에 반영해서 업데이트하도록 하겠습니다.

고맙습니다.