function td_on_translate_admin_notices() {
?>
<div class="notice notice-success is-dismissible">
<p><?php echo 'WPML Plugin is active! When the plugin is active, the *.po - *.mo files are used instead of Theme Panel Translation.' ?></p>
</div>
<?php
}
add_action('admin_notices', 'td_on_translate_admin_notices');