Uncaught Error: Class ‘class_uv_emails’ not found

Hello,

I am struggling with the attempt to make your plugin work. All I get is an “Uncaught Error: Class ‘class_uv_emails’ not found” in my logs with a 500 showing on the browser after filling out the registration form.

Here is the full error log of the 500er with some lines of another plugin shown.
PHP Fatal error: Uncaught Error: Class ‘class_uv_emails’ not found in /var/www/wordpress/wp-content/plugins/user-verification/includes/functions.php:675\nStack trace:\n#0 /var/www/wordpress/wp-content/plugins/user-verification/includes/actions/action-uv-registration.php(41): uv_mail(‘tuf82721@cndps….’, Array)\n#1 /var/www/wordpress/wp-includes/class-wp-hook.php(286): uv_action_user_register_function(99)\n#2 /var/www/wordpress/wp-includes/class-wp-hook.php(310): WP_Hook->apply_filters(NULL, Array)\n#3 /var/www/wordpress/wp-includes/plugin.php(453): WP_Hook->do_action(Array)\n#4 /var/www/wordpress/wp-includes/user.php(1773): do_action(‘user_register’, 99)\n#5 /var/www/wordpress/wp-content/plugins/lifterlms/includes/class.llms.person.handler.php(581): wp_insert_user(Array)\n#6 /var/www/wordpress/wp-content/plugins/lifterlms/includes/class.llms.person.handler.php(736): LLMS_Person_Handler::insert_data(Array, ‘registration’)\n#7 /var/www/wordpress/wp-content/plugins/lifterlms/includes/functions/llms.functions.person.php(321): LLMS_Person in /var/www/wordpress/wp-content/plugins/user-verification/includes/functions.php on line 675, referer: https://forenakademie-test.versicherungsforen.net/purchase/?plan=1960

Any suggestions?
Best greetings