dashboard access locked

First of all, many thanks for writing this plugin. It really woks well and I am very pleased.

Here’s my problem: I set it up on one of our sites just as I have on another one. I enabled the option to lock the dashboard except for admins. Then, I had this plugin rename the admin account from admin to another name. Now, I can’t access the dashboard. Since new users can’t access the site without my permission, people can’t register for seminars.

Is there a way to fix this without deleting the plugin?

https://wordpress.org/plugins/all-in-one-wp-security-and-firewall/