This plugin will not work well with Apache 2.4 due to several changes.
I modified myself two files to get it working again:
Old: "Order allow,deny" . PHP_EOL . "Deny from all"
New: "Require all denied"
# Begin HackRepair.com Blacklist RewriteEngine on
# Begin HackRepair.com Blacklist
<IfModule mod_rewrite.c> RewriteEngine on
please add those changes in your next update