E-mail confirmation field

Hey,

I’m using your awesome plugin to create registration form for new customers. I’m trying to add e-mail veryfication field to avoid mistakes. However my function doesn’t work. Can you please check it and give me some help with it?

add_action('um_submit_form_errors_hook_','um_custom_validate_user_email', 999, 1);
function um_custom_validate_user_email( $args ) {
	global $ultimatemember;
	$user_email = $_POST['user_email'];
	$user_email_confirmation = $_POST['user_email_confirmation'];
	
	if ($user_email != $user_email_confirmation) {
		$ultimatemember->form->add_error( 'user_email_confirmation', 'Your username must not contain the word admin.' );
	}
}