Warning on the front-end view when alpha index don't have assigned additional fields.
On the PHP 7.2 servers appear warning:
Warning: count(): Parameter must be an array or an object that implements Countable in /homepages/25/d252744405/htdocs/test/20160409/components/com_sobipro/lib/views/view.php on line 743
at the front end views, when in the Alpha Index configuration isn't specified at lest one additional field