In member.php file,
replace this:
"lang_text_for_each_user" => (isset($user_row[$user_table_fields['user_id']]) && $user_row[$user_table_fields['user_id']] == $user_info['user_id']) ? preg_replace("/" . $site_template->start . "user_name" . $site_template->end . "/siU", format_text(trim($user_row[$user_table_fields['user_name']]), 2), $lang['text_for_each_user']) : $lang['text_for_fun'],