Hello
we get following error messages in our logfile. How can we fix it ?

mod_fcgid: stderr: PHP Warning: count(): Parameter must be an array or an object that implements Countable in /var/www/vhosts/fotoabenteuer.de/httpdocs/components/com_jlexreview/templates/default/reviews/default_reviews.php on line 12, referer: https://fotoabenteuer.de/filterprodukte-onlineshop

We are working with joomla 3.9.1
Virtuemart 3.4.2
Php 7.2.13

It was fine you can help us

Best Regards
Michael