@ldallara,
We were locked out too and solved our issue using the following code:
add_action( 'init', 'remove_unsuccessfull_attempts_block' );
function remove_unsuccessfull_attempts_block() {
update_option( 'sg_security_unsuccessful_login', array() );
}
Procedure:
Add the above code to your functions.php file.
File path: yourwebsite.com > public_html > wp-includes > functions.php
Once you add the code, you should be able to log into your website using 2FA (if activated within the plugin). Beforehand, make sure you clear all cache and use a browser in incognito mode.
After you login, go back to your functions.php file and remove the code.
Noteworthy:
If you find yourself being locked-out often, your admin username(s) could have been compromised which will require changing both your admin username(s) and password(s).
Hope this helps.
Cheers!