PHP Notice when adding new user

Hi,

I just added a new user to my site and after pressing the save button I got this error message:

PHP Notice:  Undefined property: stdClass::$nickname in /***/plugins/better-wp-security/core/modules/strong-passwords/class-itsec-strong-passwords.php on line 162
PHP Notice:  Undefined property: stdClass::$display_name in /***/plugins/better-wp-security/core/modules/strong-passwords/class-itsec-strong-passwords.php on line 163
PHP Notice:  Undefined property: stdClass::$description in /***/plugins/better-wp-security/core/modules/strong-passwords/class-itsec-strong-passwords.php on line 166

iThemes security plugin installed has version 6.1.1

The user was added but getting this error looks not nice though ??