Important Note on Intermediate and Advanced Features

We have a nice labeling system in this plugin for most of the features. Features that are labelled “Advanced” can break your site. Those are there for the *really advanced* users.

Don’t activate the features that are categorized as advanced unless you know what you are doing. There are plenty of basic and intermediate features that you can use and get very very good security protection/coverage.

If you have activated a feature and it broke your site then do the following:

Step 1) Deactivate the plugin using this instruction:
https://www.tipsandtricks-hq.com/deactivate-wordpress-plugins-without-logging-into-wp-admin-video-tutorial-4375

Step 2) Reset your htaccess file using any of the following two instructions:

https://www.tipsandtricks-hq.com/how-to-restore-the-htaccess-file-when-using-the-all-in-one-wp-security-plugin-5945

https://www.tipsandtricks-hq.com/how-to-restore-the-htaccess-file-when-using-the-all-in-one-wp-security-plugin-5945

You should be good after that.

It is a good idea for you to read the folloiwng page also:
https://www.tipsandtricks-hq.com/wordpress-security-and-firewall-plugin#troubleshooting_resources