Undefined variable $fromtop | WordPress.org

Hi, I am getting this PHP error:

Message:

Undefined variable $fromtop

Location:

1. wp-content/plugins/accessible-poetry/inc/toolbar.php:159
2. acwp_iconsize_style()
   wp-includes/class-wp-hook.php:324
3. do_action('wp_footer')
   wp-includes/general-template.php:3081
4. wp_footer()
   wp-content/themes/hps2024/footer.php:129
5. load_template('wp-content/themes/hps2024/footer.php')
   wp-includes/template.php:745
6. locate_template()
   wp-includes/general-template.php:92
7. get_footer()
   wp-content/themes/hps2024/front-page.php:80

Server running PHP version: 8.2.22.

WP version: 6.6.1

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