[Bitrix\Main\DB\SqlQueryException] 
Mysql query error: (2006) MySQL server has gone away (400)
SELECT 
	`sale_internals_discount_group`.`DISCOUNT_ID` AS `DISCOUNT_ID`,
	`sale_internals_discount_group`.`ID` AS `UALIAS_0`
FROM `b_sale_discount_group` `sale_internals_discount_group` 

WHERE `sale_internals_discount_group`.`GROUP_ID` IN (2)
AND `sale_internals_discount_group`.`ACTIVE` = 'Y'
ORDER BY `DISCOUNT_ID` ASC
/home/user/web/tdrim.ru/public_html/bitrix/modules/main/lib/db/mysqliconnection.php:137
#0: Bitrix\Main\DB\MysqliConnection->queryInternal
	/home/user/web/tdrim.ru/public_html/bitrix/modules/main/lib/db/connection.php:330
#1: Bitrix\Main\DB\Connection->query
	/home/user/web/tdrim.ru/public_html/bitrix/modules/main/lib/orm/query/query.php:3398
#2: Bitrix\Main\ORM\Query\Query->query
	/home/user/web/tdrim.ru/public_html/bitrix/modules/main/lib/orm/query/query.php:825
#3: Bitrix\Main\ORM\Query\Query->exec
	/home/user/web/tdrim.ru/public_html/bitrix/modules/main/lib/orm/data/datamanager.php:500
#4: Bitrix\Main\ORM\Data\DataManager::getList
	/home/user/web/tdrim.ru/public_html/bitrix/modules/sale/lib/discount/runtimecache/discountcache.php:53
#5: Bitrix\Sale\Discount\RuntimeCache\DiscountCache->getDiscountIds
	/home/user/web/tdrim.ru/public_html/bitrix/modules/iblock/classes/general/comp_pricetools.php:145
#6: CIBlockPriceTools::SetCatalogDiscountCache
	/home/user/web/tdrim.ru/public_html/bitrix/modules/iblock/lib/component/base.php:723
#7: Bitrix\Iblock\Component\Base->initPrices
	/home/user/web/tdrim.ru/public_html/bitrix/modules/iblock/lib/component/base.php:4044
#8: Bitrix\Iblock\Component\Base->processResultData
	/home/user/web/tdrim.ru/public_html/bitrix/modules/iblock/lib/component/element.php:286
#9: Bitrix\Iblock\Component\Element->processResultData
	/home/user/web/tdrim.ru/public_html/bitrix/modules/iblock/lib/component/base.php:4551
#10: Bitrix\Iblock\Component\Base->loadData
	/home/user/web/tdrim.ru/public_html/bitrix/modules/iblock/lib/component/base.php:4540
#11: Bitrix\Iblock\Component\Base->initialLoadAction
	/home/user/web/tdrim.ru/public_html/bitrix/modules/iblock/lib/component/element.php:271
#12: Bitrix\Iblock\Component\Element->initialLoadAction
	
#13: call_user_func
	/home/user/web/tdrim.ru/public_html/bitrix/modules/iblock/lib/component/base.php:4725
#14: Bitrix\Iblock\Component\Base->doAction
	/home/user/web/tdrim.ru/public_html/bitrix/modules/iblock/lib/component/base.php:4743
#15: Bitrix\Iblock\Component\Base->executeComponent
	/home/user/web/tdrim.ru/public_html/bitrix/modules/main/classes/general/component.php:656
#16: CBitrixComponent->includeComponent
	/home/user/web/tdrim.ru/public_html/bitrix/modules/main/classes/general/main.php:1041
#17: CAllMain->IncludeComponent
	/home/user/web/tdrim.ru/public_html/bitrix/templates/ishop/components/bitrix/catalog/shop/element.php:99
#18: include(string)
	/home/user/web/tdrim.ru/public_html/bitrix/modules/main/classes/general/component_template.php:789
#19: CBitrixComponentTemplate->__IncludePHPTemplate
	/home/user/web/tdrim.ru/public_html/bitrix/modules/main/classes/general/component_template.php:884
#20: CBitrixComponentTemplate->IncludeTemplate
	/home/user/web/tdrim.ru/public_html/bitrix/modules/main/classes/general/component.php:764
#21: CBitrixComponent->showComponentTemplate
	/home/user/web/tdrim.ru/public_html/bitrix/modules/main/classes/general/component.php:712
#22: CBitrixComponent->includeComponentTemplate
	/home/user/web/tdrim.ru/public_html/bitrix/components/bitrix/catalog/component.php:171
#23: include(string)
	/home/user/web/tdrim.ru/public_html/bitrix/modules/main/classes/general/component.php:605
#24: CBitrixComponent->__includeComponent
	/home/user/web/tdrim.ru/public_html/bitrix/modules/main/classes/general/component.php:680
#25: CBitrixComponent->includeComponent
	/home/user/web/tdrim.ru/public_html/bitrix/modules/main/classes/general/main.php:1041
#26: CAllMain->IncludeComponent
	/home/user/web/tdrim.ru/public_html/catalog/index.php:431
#27: include_once(string)
	/home/user/web/tdrim.ru/public_html/bitrix/modules/main/include/urlrewrite.php:159
#28: include_once(string)
	/home/user/web/tdrim.ru/public_html/bitrix/urlrewrite.php:2