error in sql query

			SELECT 
				products.*,
				catalog.name AS cat_name, catalog.cid AS cat_id, 
				manufacturers.manufacturer_name AS manufacturer_name
			FROM products
			INNER JOIN catalog ON  catalog.cid='5' 
			LEFT JOIN manufacturers ON products.manufacturer_id = manufacturers.manufacturer_id AND manufacturers.is_visible='1'
			WHERE products.pid='9838' AND products.is_visible='Yes'

.mysql error : MySQL server has gone away