Improving plugin code

There are suggestions to improve the code after line 115 in the file ../plugins/masterstudy-lms-learning-management-system/stm-lms-templates/lesson/curriculum.php

The problem with the current code is that when using the Russian language, the correct endings of words are not formed with a different number of questions. Moreover, the code, which I propose to replace, is already used in the theme on the course page in the “Curriculum” section and forms words well with different endings depending on the number of questions.

<div class="stm-curriculum-item__meta">
	<?php if( !empty( $quiz_info[ 'progress' ] ) ): ?>
<?php echo intval( $quiz_info[ 'progress' ] ) ?>%
<?php else:
$questions = get_post_meta($curriculum_item, 'questions', true);
if(!empty($questions)){
	//New correct code
	$meta = sprintf(_n(
		'%s question',
		'%s questions',
		count(explode(',', $questions)),
		'masterstudy-lms-learning-management-system'
	), count(explode(',', $questions)));
	if(!empty($meta)){
		echo wp_kses_post($meta);
	}
	//Сurrent code
	//$questions_array = explode(',', $questions);
	//if(!empty($questions_array)){
	//    echo sprintf(esc_html__('%s questions', 'masterstudy-lms-learning-management-system'), count($questions_array));
	//}
}
?>
<?php endif; ?>

<?php if( $lesson_style === 'classic' && $lesson_type !== 'stream' && $lesson_type !== 'zoom_conference' && !empty( $meta ) ): ?>
<?php echo esc_html( $meta ); ?>
<?php endif; ?>
</div>