Add your own content to the Age Verification plugin for WordPress

age-verification-after-content-filter.php

<?php
/**
 * Add content after the Age Verification pop up content
 * 
 * @author Robert DeVore <deviodigital@gmail.com>
 * @link https://www.wordpress.org/plugins/dispensary-age-verification/
 * @return string
 */
function acme_after_popup_content( $string ) {
  // Change the following to anything you'd like to display.
  $string = __( 'By clicking YES you agree to our Terms of Service', 'acme-lang' );

  return $string;
}
add_filter( 'avwp_after_popup_content', 'acme_after_popup_content' );