Not working properly after update

I have a code snippet like this:

if ( !is_user_logged_in() && !is_front_page() && !is_home()) {
	add_filter('the_content', function(){
			return __('Please login first <br></br>');
	}, 99);
}

it was working smoothly in version 2.2.3 but it is not working properly in version 2.3.1

In every page without login it says: “Please login first”.