[Bitrix\Main\DB\SqlQueryException] 
Mysql query error: (2006) MySQL server has gone away (400)
SELECT 
	`iblock_element`.`ID` AS `ID`
FROM `b_iblock_element` `iblock_element` 

WHERE `iblock_element`.`ID` IN (50176)
/home/bitrix/www/bitrix/modules/main/lib/db/mysqliconnection.php:137
#0: Bitrix\Main\DB\MysqliConnection->queryInternal(string, array, NULL)
	/home/bitrix/www/bitrix/modules/main/lib/db/connection.php:330
#1: Bitrix\Main\DB\Connection->query(string)
	/home/bitrix/www/bitrix/modules/main/lib/entity/query.php:3038
#2: Bitrix\Main\Entity\Query->query(string)
	/home/bitrix/www/bitrix/modules/main/lib/entity/query.php:797
#3: Bitrix\Main\Entity\Query->exec()
	/home/bitrix/www/bitrix/modules/main/lib/entity/datamanager.php:290
#4: Bitrix\Main\Entity\DataManager::getList(array)
	/home/bitrix/www/bitrix/modules/catalog/lib/discount/discountmanager.php:1441
#5: Bitrix\Catalog\Discount\DiscountManager::loadIblockFields(array, array)
	/home/bitrix/www/bitrix/modules/catalog/lib/discount/discountmanager.php:1596
#6: Bitrix\Catalog\Discount\DiscountManager::getProductData(array, array, array)
	/home/bitrix/www/bitrix/modules/catalog/lib/discount/discountmanager.php:692
#7: Bitrix\Catalog\Discount\DiscountManager::preloadProductDataToExtendOrder(array, array)
	/home/bitrix/www/bitrix/modules/iblock/lib/component/base.php:455
#8: Bitrix\Iblock\Component\Base->initCatalogDiscountCache()
	/home/bitrix/www/bitrix/modules/iblock/lib/component/base.php:3612
#9: Bitrix\Iblock\Component\Base->prepareData()
	/home/bitrix/www/bitrix/modules/iblock/lib/component/base.php:3566
#10: Bitrix\Iblock\Component\Base->processResultData()
	/home/bitrix/www/bitrix/modules/iblock/lib/component/element.php:244
#11: Bitrix\Iblock\Component\Element->processResultData()
	/home/bitrix/www/bitrix/modules/iblock/lib/component/base.php:3971
#12: Bitrix\Iblock\Component\Base->loadData()
	/home/bitrix/www/bitrix/modules/iblock/lib/component/base.php:3960
#13: Bitrix\Iblock\Component\Base->initialLoadAction()
	/home/bitrix/www/bitrix/modules/iblock/lib/component/element.php:229
#14: Bitrix\Iblock\Component\Element->initialLoadAction()
	
#15: call_user_func(array)
	/home/bitrix/www/bitrix/modules/iblock/lib/component/base.php:4145
#16: Bitrix\Iblock\Component\Base->doAction()
	/home/bitrix/www/bitrix/modules/iblock/lib/component/base.php:4163
#17: Bitrix\Iblock\Component\Base->executeComponent()
	/home/bitrix/www/bitrix/modules/main/classes/general/component.php:638
#18: CBitrixComponent->includeComponent(string, array, object)
	/home/bitrix/www/bitrix/modules/main/classes/general/main.php:1041
#19: CAllMain->IncludeComponent(string, string, array, object)
	/home/bitrix/www/local/templates/.default/components/bitrix/catalog/catalog1/element.php:118
#20: include(string)
	/home/bitrix/www/bitrix/modules/main/classes/general/component_template.php:720
#21: CBitrixComponentTemplate->__IncludePHPTemplate(array, array, string)
	/home/bitrix/www/bitrix/modules/main/classes/general/component_template.php:815
#22: CBitrixComponentTemplate->IncludeTemplate(array)
	/home/bitrix/www/bitrix/modules/main/classes/general/component.php:735
#23: CBitrixComponent->showComponentTemplate()
	/home/bitrix/www/bitrix/modules/main/classes/general/component.php:683
#24: CBitrixComponent->includeComponentTemplate(string)
	/home/bitrix/www/bitrix/components/bitrix/catalog/component.php:171
#25: include(string)
	/home/bitrix/www/bitrix/modules/main/classes/general/component.php:594
#26: CBitrixComponent->__includeComponent()
	/home/bitrix/www/bitrix/modules/main/classes/general/component.php:653
#27: CBitrixComponent->includeComponent(string, array, NULL)
	/home/bitrix/www/bitrix/modules/main/classes/general/main.php:1041
#28: CAllMain->IncludeComponent(string, string, array)
	/home/bitrix/www/catalog/index.php:17
#29: include_once(string)
	/home/bitrix/www/bitrix/modules/main/include/urlrewrite.php:159
#30: include_once(string)
	/home/bitrix/www/bitrix/urlrewrite.php:2