2013 - Lost connection to MySQL server during query

select distinct p.products_id, p.products_image, p.products_price, p.products_vpe, p.products_vpe_status, p.products_vpe_value, p.products_tax_class_id, pd.products_name from products p, products_description pd where p.products_status = '1' and p.products_ordered > 0 and p.products_id = pd.products_id and pd.language_id = '1' order by p.products_ordered desc limit 10

[XT SQL Error]

2006 - MySQL server has gone away

select count(*) as total from sessions where sesskey = 'n6l5ift41jb7o8ubd4k54280l1'

[XT SQL Error]