error on update

I had to deactivate ithemes security after its update.

I get the following message, what is going wrong?

Warning: Missing argument 2 for ITSEC_Brute_Force::execute_brute_force_login_successful() in /var/www/vhosts/soundfulness.com/subdomains/member/httpdocs/wp-content/plugins/better-wp-security/modules/free/brute-force/class-itsec-brute-force.php on line 52

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