2013 - Lost connection to MySQL server during query

select products_id, products_price, products_discount_allowed, products_tax_class_id, products_weight from products where products_id='104'

[XT SQL Error]

2006 - MySQL server has gone away

select count(*) as total from sessions where sesskey = '7l89ne9c8p334jf7thmffc7hi6'

[XT SQL Error]