PHP | Type: PHPPHP 7.2 Countable issue

PHP 7.2 issue on OZH:

Warning: count(): Parameter must be an array or an object that implements Countable in /app/public/wp-content/plugins/ozh-admin-drop-down-menu/inc/core.php on line 311 (first line, below)

if (!count($wp_ozh_adminmenu)) {
    $wp_ozh_adminmenu = (array)get_option('ozh_adminmenu');
    unset($wp_ozh_adminmenu[0]);
}

Replace with:

if (!is_array($wp_ozh_adminmenu) || !count($wp_ozh_adminmenu)) {
    $wp_ozh_adminmenu = (array)get_option('ozh_adminmenu');
    unset($wp_ozh_adminmenu[0]);
}