Errors on page when adding dir

[KayMasters]

When I use the plugin, it displays the directory correctly on the page, but it also has two errors above the directory (I'm on release 2018-04-22a "Greebo"):

Warning: count(): Parameter must be an array or an object that implements Countable in C:\xampp\htdocs\dokuwiki\lib\plugins\dir\syntax.php on line 459

Warning: count(): Parameter must be an array or an object that implements Countable in C:\xampp\htdocs\dokuwiki\lib\plugins\dir\syntax.php on line 461

Screen shot -

[runout-at]

You could try this fork and give feedback:
https://gitlab.com/runout/dokuwiki-plugin-dir