Add custom fields to AnsPress ask form.

override-ask-form.php

<?php
/**
 * Add custom fields to AnsPress question form.
 * 
 * This hook will add two new fields in ask form.
 *
 * @param array $form Form arguments.
 * @return void
 */
function my_custom_question_field( $form ) {
  // Url field.
  $form['fields']['website'] = array(
    'label'   => __( 'Your website' ),
    'desc'    => __( 'Enter link to your website.' ),
    'subtype' => 'url', // Default type is set to input.
    'attr'    => array(
      'placeholder' => 'https://mydomain.com/',
    ),
  );
  
  // Upload field.
  $form['fields']['screenshot'] = array(
    'label'       => __( 'Screenshot' ),
    'desc'        => __( 'Upload screenshots of your website.' ),
    'type'        => 'upload',
    'upload_args' => array(
      'multiple'  => false, // Only allow single image upload.
    ),
  );

  return $form;
}

add_filter( 'ap_question_form_fields', 'my_custom_question_field' );

Hello, this works perfectly but contents of the custom field are not getting saved in the question upon submitting