Query took down mysql server

Hi!

I’ve experienced an error with this plugin, causing my mysql server to crash. Take a look at this logs:

[Wed Sep 06 10:10:37.552856 2017] [:error] [pid 19346] [client 162.158.150.104:31905] Erro de banco de dados do WordPress Server shutdown in progress para a consulta SELECT option_value FROM wp_options WHERE option_name = 'aal_apikey' LIMIT 1 feita por require_once('wp-admin/admin.php'), require('wp-admin/menu.php'), require_once('wp-admin/includes/menu.php'), do_action('admin_menu'), WP_Hook->do_action, WP_Hook->apply_filters, call_user_func_array, wpaal_create_menu, get_option, referer: wp-admin/edit-comments.php?comment_status=moderated
[Wed Sep 06 10:10:37.657785 2017] [:error] [pid 19346] [client 162.158.150.104:31905] PHP Warning:  Error while sending QUERY packet. PID=19346 in /wp-includes/wp-db.php on line 1877, referer: /wp-admin/edit-comments.php?comment_status=moderated
[Wed Sep 06 10:10:52.530734 2017] [mpm_prefork:notice] [pid 19342] AH00169: caught SIGTERM, shutting down

I’m running a VPS with these configs on my.cnf, so I don’t think this should be the problem:

[mysqld]
max_allowed_packet = 1G

After restarting apache, everything went back to normal.