[Bitrix\Main\DB\SqlQueryException] 
Mysql query error: (2006) MySQL server has gone away (400)
SELECT 
	`catalog_catalog_iblock`.`IBLOCK_ID` AS `IBLOCK_ID`,
	`catalog_catalog_iblock`.`PRODUCT_IBLOCK_ID` AS `PRODUCT_IBLOCK_ID`,
	`catalog_catalog_iblock`.`SKU_PROPERTY_ID` AS `SKU_PROPERTY_ID`,
	`catalog_catalog_iblock_iblock`.`VERSION` AS `VERSION`,
	`catalog_catalog_iblock_iblock`.`ID` AS `UALIAS_0`
FROM `b_catalog_iblock` `catalog_catalog_iblock` 
INNER JOIN `b_iblock` `catalog_catalog_iblock_iblock` ON `catalog_catalog_iblock`.`IBLOCK_ID` = `catalog_catalog_iblock_iblock`.`ID`
WHERE `catalog_catalog_iblock`.`PRODUCT_IBLOCK_ID` = 6
/home/anderssen/web/anderssen.ru/public_html/bitrix/modules/main/lib/db/mysqliconnection.php:137
#0: Bitrix\Main\DB\MysqliConnection->queryInternal(string, array, NULL)
	/home/anderssen/web/anderssen.ru/public_html/bitrix/modules/main/lib/db/connection.php:330
#1: Bitrix\Main\DB\Connection->query(string)
	/home/anderssen/web/anderssen.ru/public_html/bitrix/modules/main/lib/orm/query/query.php:3304
#2: Bitrix\Main\ORM\Query\Query->query(string)
	/home/anderssen/web/anderssen.ru/public_html/bitrix/modules/main/lib/orm/query/query.php:816
#3: Bitrix\Main\ORM\Query\Query->exec()
	/home/anderssen/web/anderssen.ru/public_html/bitrix/modules/main/lib/orm/data/datamanager.php:500
#4: Bitrix\Main\ORM\Data\DataManager::getList(array)
	/home/anderssen/web/anderssen.ru/public_html/bitrix/modules/catalog/general/catalog_sku.php:143
#5: CAllCatalogSku::GetInfoByProductIBlock(integer)
	/home/anderssen/web/anderssen.ru/public_html/bitrix/components/bitrix/catalog.smart.filter/class.php:128
#6: CBitrixCatalogSmartFilter->executeComponent()
	/home/anderssen/web/anderssen.ru/public_html/bitrix/modules/main/classes/general/component.php:649
#7: CBitrixComponent->includeComponent(string, array, object)
	/home/anderssen/web/anderssen.ru/public_html/bitrix/modules/main/classes/general/main.php:1039
#8: CAllMain->IncludeComponent(string, string, array, object, array)
	/home/anderssen/web/anderssen.ru/public_html/bitrix/templates/anderssen2017newyear/components/bitrix/catalog/csnew/sections.php:358
#9: include(string)
	/home/anderssen/web/anderssen.ru/public_html/bitrix/modules/main/classes/general/component_template.php:789
#10: CBitrixComponentTemplate->__IncludePHPTemplate(array, array, string)
	/home/anderssen/web/anderssen.ru/public_html/bitrix/modules/main/classes/general/component_template.php:884
#11: CBitrixComponentTemplate->IncludeTemplate(array)
	/home/anderssen/web/anderssen.ru/public_html/bitrix/modules/main/classes/general/component.php:746
#12: CBitrixComponent->showComponentTemplate()
	/home/anderssen/web/anderssen.ru/public_html/bitrix/modules/main/classes/general/component.php:694
#13: CBitrixComponent->includeComponentTemplate(string)
	/home/anderssen/web/anderssen.ru/public_html/bitrix/components/bitrix/catalog/component.php:171
#14: include(string)
	/home/anderssen/web/anderssen.ru/public_html/bitrix/modules/main/classes/general/component.php:605
#15: CBitrixComponent->__includeComponent()
	/home/anderssen/web/anderssen.ru/public_html/bitrix/modules/main/classes/general/component.php:664
#16: CBitrixComponent->includeComponent(string, array, boolean)
	/home/anderssen/web/anderssen.ru/public_html/bitrix/modules/main/classes/general/main.php:1039
#17: CAllMain->IncludeComponent(string, string, array, boolean)
	/home/anderssen/web/anderssen.ru/public_html/catalog-sale/index.php:422