To disable author pages then redirect page visitors to homepage, down below a little snippet code that you may add to functions.php
/** * Disable Author Pages */ function disable_author_pages() { global $wp_query; if ( is_author() ) { wp_redirect( get_bloginfo( 'wpurl' ), 301 ); exit; } } add_action( 'template_redirect', 'disable_author_pages', 1 );