[DATABASE ERROR]
The execution of ptCommerce was stoped due to a invalid response from database.

Main script:/site/index.php
Current exc: functions

[ERROR] 2013 - Lost connection to MySQL server during query

select b.banners_id, b.expires_date, b.expires_impressions, sum(bh.banners_shown) as banners_shown from banners b, banners_history bh where b.status = '1' and b.banners_id = bh.banners_id group by b.banners_id