[Bitrix\Main\DB\SqlQueryException] 
Mysql query error: (2006) MySQL server has gone away (400)
SELECT 
	`catalog_group`.`ID` AS `ID`,
	`catalog_group`.`NAME` AS `NAME`,
	`catalog_group`.`BASE` AS `BASE`,
	`catalog_group`.`SORT` AS `SORT`,
	`catalog_group`.`XML_ID` AS `XML_ID`,
	`catalog_group_current_lang`.`NAME` AS `NAME_LANG`,
	`catalog_group_current_lang`.`ID` AS `UALIAS_0`
FROM `b_catalog_group` `catalog_group` 
LEFT JOIN `b_catalog_group_lang` `catalog_group_current_lang` ON `catalog_group`.`ID` = `catalog_group_current_lang`.`CATALOG_GROUP_ID`
AND `catalog_group_current_lang`.`LANG` = 'ru'
WHERE `catalog_group`.`BASE` = 'Y'
/var/www/www-root/data/www/server-expert.com/bitrix/modules/main/lib/db/mysqliconnection.php:137
#0: Bitrix\Main\DB\MysqliConnection->queryInternal(string, array, NULL)
	/var/www/www-root/data/www/server-expert.com/bitrix/modules/main/lib/db/connection.php:330
#1: Bitrix\Main\DB\Connection->query(string)
	/var/www/www-root/data/www/server-expert.com/bitrix/modules/main/lib/orm/query/query.php:3398
#2: Bitrix\Main\ORM\Query\Query->query(string)
	/var/www/www-root/data/www/server-expert.com/bitrix/modules/main/lib/orm/query/query.php:825
#3: Bitrix\Main\ORM\Query\Query->exec()
	/var/www/www-root/data/www/server-expert.com/bitrix/modules/main/lib/orm/data/datamanager.php:500
#4: Bitrix\Main\ORM\Data\DataManager::getList(array)
	/var/www/www-root/data/www/server-expert.com/bitrix/modules/catalog/general/cataloggroup.php:310
#5: CAllCatalogGroup::GetBaseGroup()
	/var/www/www-root/data/www/server-expert.com/bitrix/templates/dresscodeV2_copy/components/bitrix/news/brands/detail.php:50
#6: include(string)
	/var/www/www-root/data/www/server-expert.com/bitrix/modules/main/classes/general/component_template.php:789
#7: CBitrixComponentTemplate->__IncludePHPTemplate(array, array, string)
	/var/www/www-root/data/www/server-expert.com/bitrix/modules/main/classes/general/component_template.php:884
#8: CBitrixComponentTemplate->IncludeTemplate(array)
	/var/www/www-root/data/www/server-expert.com/bitrix/modules/main/classes/general/component.php:764
#9: CBitrixComponent->showComponentTemplate()
	/var/www/www-root/data/www/server-expert.com/bitrix/modules/main/classes/general/component.php:712
#10: CBitrixComponent->includeComponentTemplate(string)
	/var/www/www-root/data/www/server-expert.com/bitrix/components/bitrix/news/component.php:216
#11: include(string)
	/var/www/www-root/data/www/server-expert.com/bitrix/modules/main/classes/general/component.php:605
#12: CBitrixComponent->__includeComponent()
	/var/www/www-root/data/www/server-expert.com/bitrix/modules/main/classes/general/component.php:680
#13: CBitrixComponent->includeComponent(string, array, boolean, boolean)
	/var/www/www-root/data/www/server-expert.com/bitrix/modules/main/classes/general/main.php:1041
#14: CAllMain->IncludeComponent(string, string, array, boolean)
	/var/www/www-root/data/www/server-expert.com/brands/index.php:260
#15: include_once(string)
	/var/www/www-root/data/www/server-expert.com/bitrix/modules/main/include/urlrewrite.php:159
#16: include_once(string)
	/var/www/www-root/data/www/server-expert.com/bitrix/urlrewrite.php:2