Hi,
Pressing the button to enable the Brute-Force Protection
show me the error
Warning: file_put_contents(/home/drepetto/public_html/wp-content/plugins/gotmls/../../../wp-config.php): failed to open stream: Permission denied in /home/drepetto/public_html/wp-content/plugins/gotmls/images/index.php on line 774
See images http://www.evernote.com/l/AA2_Bz9yQs9O24IvKCGmDbNhbENpGSsH7_0/
This is because your web server does not have permission to write to your wp-config.php file, which is where my plugin installs the patch.
If you want to install this patch then you should make sure that the wp-config.php file is writable by the apache user.