Add question programmatically in Anspress

Question.php

$question_array = array(
        'post_title' => $question_title,
        'post_author' => $user_id_for_question,
        'post_content' => $question_content,
        'post_type' => 'question',
        'post_status' => 'publish',
        'comment_status' => 'open'
    );
$question_post_id = wp_insert_post($question_array);
if ($question_post_id) {
	wp_set_post_terms($question_post_id, $category, 'question_category');
	wp_set_post_terms($question_post_id, $tags, 'question_tag');
	$answer_permalink = get_permalink($answer_post_id);
}