2006 - MySQL server has gone away

select p.products_id, pd.products_name, p.products_price, p.products_tax_class_id, p.products_image, s.expires_date, p.products_vpe, p.products_vpe_status, p.products_vpe_value, s.specials_new_products_price from products p, products_description pd, specials s where p.products_status = '1' and p.products_id = s.products_id and pd.products_id = s.products_id and pd.language_id = '2' and s.status = '1' AND (p.group_permission_10000=1 OR p.group_permission_1=1 ) AND 0 0 order by s.specials_date_added desc limit 10

[XT SQL Error]

2006 - MySQL server has gone away

select count(*) as total from sessions where sesskey = 'icdna8aa6lmmp56siuk0r175h6'

[XT SQL Error]