Errors in logs, not logged most 404 pages

Hi!
Have tons of errors in error_log on my server, due not logged most (but not all) 404 pages.
Move to 2.10 version, it is ok
Example:
2019/04/17 17:01:04 [error] 20887#0: *4537679 FastCGI sent in stderr: “PHP message: База данных WordPress возвратила ошибку Column ‘referrer’ cannot be null в ответ на запрос INSERT INTO wp_abj404_logsv2 (timestamp, user_ip, referrer, dest_url, requested_url, requested_url_detail, username, min_log_id) VALUES (‘1555509663’, ‘188.190.215.10’, NULL, ‘404’, ‘/jlghdshgjsdfhgjksd’, NULL, ‘1’, ‘1’), выполненный require(‘wp-blog-header.php’), require_once(‘wp-includes/template-loader.php’), do_action(‘template_redirect’), WP_Hook->do_action, WP_Hook->apply_filters, ABJ_404_Solution_WordPress_Connector::process404, ABJ_404_Solution_PluginLogic->sendTo404Page, ABJ_404_Solution_DataAccess->logRedirectHit, ABJ_404_Solution_DataAccess->insertAndGetResults, next_level_cache_wpdb->queryPHP message: ABJ-404-SOLUTION (ERROR): Ugh. SQL insert error: Column 'referrer' cannot be null, Query: INSERT INTO wp_abj404_logsv2 (timestamp, user_ip, referrer, dest_url, requested_url, requested_url_detail, username, min_log_id) VALUES ('1555509663', '188.190.215.10', NULL, '404', '/jlghdshgjsdfhgjksd', NULL, '1', '1')” while reading response header from upstream, client: 188.190.215.10, server: mysite.ru, request: “GET /jlghdshgjsdfhgjksd HTTP/2.0”, upstream: “fastcgi://unix:/var/www/php-fpm/www-root.sock:”, host: “mysite.ru”