If you run into a conflict preventing you from accessing your site you can add the code below into the wp-config.php file anywhere as long as it is between the first line ( <?php ) and the line that says / That's all, stop editing. Happy Blogging / to temporarily disable all features so you can log in.
define('ITSEC_DISABLE_MODULES', true);
You can see how to edit the wp-config.php file in this article.