[Bitrix\Main\DB\SqlQueryException] 
Mysql query error: (2006) MySQL server has gone away (400)
SHOW TABLES LIKE 'b_iblock_11_index_val'
/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/db/mysqlcommonconnection.php:37
#2: Bitrix\Main\DB\MysqlCommonConnection->isTableExists(string)
	/var/www/www-root/data/www/server-expert.com/bitrix/modules/iblock/lib/propertyindex/dictionary.php:54
#3: Bitrix\Iblock\PropertyIndex\Dictionary->isExists()
	/var/www/www-root/data/www/server-expert.com/bitrix/modules/iblock/lib/propertyindex/facet.php:57
#4: Bitrix\Iblock\PropertyIndex\Facet->__construct(integer)
	/var/www/www-root/data/www/server-expert.com/bitrix/modules/iblock/lib/propertyindex/querybuilder.php:28
#5: Bitrix\Iblock\PropertyIndex\QueryBuilder->__construct(integer)
	/var/www/www-root/data/www/server-expert.com/bitrix/modules/iblock/classes/general/iblockelement.php:662
#6: CAllIBlockElement->MkFilter(array, array, array)
	/var/www/www-root/data/www/server-expert.com/bitrix/modules/iblock/classes/general/iblockelement.php:3095
#7: CAllIBlockElement->PrepareGetList(array, array, array, string, array, array, NULL, NULL, array, boolean, string, array, array, array)
	/var/www/www-root/data/www/server-expert.com/bitrix/modules/iblock/classes/mysql/iblockelement.php:326
#8: CIBlockElement->prepareSql(array, array, boolean, array)
	/var/www/www-root/data/www/server-expert.com/bitrix/modules/iblock/classes/general/iblockelement.php:712
#9: CAllIBlockElement->MkFilter(array, array, array, integer, boolean)
	/var/www/www-root/data/www/server-expert.com/bitrix/modules/iblock/classes/general/iblockelement.php:1272
#10: CAllIBlockElement->MkFilter(array, array, array, integer, boolean)
	/var/www/www-root/data/www/server-expert.com/bitrix/modules/iblock/classes/general/iblockelement.php:1272
#11: CAllIBlockElement->MkFilter(array, array, array)
	/var/www/www-root/data/www/server-expert.com/bitrix/modules/iblock/classes/general/iblockelement.php:3095
#12: CAllIBlockElement->PrepareGetList(array, array, array, string, array, array, NULL, NULL, array, boolean, string, array, array, array)
	/var/www/www-root/data/www/server-expert.com/bitrix/modules/iblock/classes/mysql/iblockelement.php:326
#13: CIBlockElement->prepareSql(array, array, boolean, array)
	/var/www/www-root/data/www/server-expert.com/bitrix/modules/iblock/classes/mysql/iblockelement.php:666
#14: CIBlockElement::GetList(array, array, boolean, array, array)
	/var/www/www-root/data/www/server-expert.com/bitrix/components/dresscode/catalog.section/component.php:453
#15: include(string)
	/var/www/www-root/data/www/server-expert.com/bitrix/modules/main/classes/general/component.php:605
#16: CBitrixComponent->__includeComponent()
	/var/www/www-root/data/www/server-expert.com/bitrix/modules/main/classes/general/component.php:680
#17: CBitrixComponent->includeComponent(string, array, boolean, boolean)
	/var/www/www-root/data/www/server-expert.com/bitrix/modules/main/classes/general/main.php:1041
#18: CAllMain->IncludeComponent(string, string, array, boolean)
	/var/www/www-root/data/www/server-expert.com/bitrix/components/dresscode/catalog.item/templates/detail/template.php:748
#19: include(string)
	/var/www/www-root/data/www/server-expert.com/bitrix/modules/main/classes/general/component_template.php:789
#20: CBitrixComponentTemplate->__IncludePHPTemplate(array, array, string)
	/var/www/www-root/data/www/server-expert.com/bitrix/modules/main/classes/general/component_template.php:884
#21: CBitrixComponentTemplate->IncludeTemplate(array)
	/var/www/www-root/data/www/server-expert.com/bitrix/modules/main/classes/general/component.php:764
#22: CBitrixComponent->showComponentTemplate()
	/var/www/www-root/data/www/server-expert.com/bitrix/modules/main/classes/general/component.php:712
#23: CBitrixComponent->includeComponentTemplate()
	/var/www/www-root/data/www/server-expert.com/bitrix/components/dresscode/catalog.item/component.php:737
#24: include(string)
	/var/www/www-root/data/www/server-expert.com/bitrix/modules/main/classes/general/component.php:605
#25: CBitrixComponent->__includeComponent()
	/var/www/www-root/data/www/server-expert.com/bitrix/modules/main/classes/general/component.php:680
#26: CBitrixComponent->includeComponent(string, array, boolean, boolean)
	/var/www/www-root/data/www/server-expert.com/bitrix/modules/main/classes/general/main.php:1041
#27: CAllMain->IncludeComponent(string, string, array, boolean, array)
	/var/www/www-root/data/www/server-expert.com/bitrix/templates/dresscodeV2_copy/components/bitrix/catalog/.default/element.php:129
#28: include(string)
	/var/www/www-root/data/www/server-expert.com/bitrix/modules/main/classes/general/component_template.php:789
#29: CBitrixComponentTemplate->__IncludePHPTemplate(array, array, string)
	/var/www/www-root/data/www/server-expert.com/bitrix/modules/main/classes/general/component_template.php:884
#30: CBitrixComponentTemplate->IncludeTemplate(array)
	/var/www/www-root/data/www/server-expert.com/bitrix/modules/main/classes/general/component.php:764
#31: CBitrixComponent->showComponentTemplate()
	/var/www/www-root/data/www/server-expert.com/bitrix/modules/main/classes/general/component.php:712
#32: CBitrixComponent->includeComponentTemplate(string)
	/var/www/www-root/data/www/server-expert.com/bitrix/components/bitrix/catalog/component.php:171
#33: include(string)
	/var/www/www-root/data/www/server-expert.com/bitrix/modules/main/classes/general/component.php:605
#34: CBitrixComponent->__includeComponent()
	/var/www/www-root/data/www/server-expert.com/bitrix/modules/main/classes/general/component.php:680
#35: CBitrixComponent->includeComponent(string, array, NULL, boolean)
	/var/www/www-root/data/www/server-expert.com/bitrix/modules/main/classes/general/main.php:1041
#36: CAllMain->IncludeComponent(string, string, array)
	/var/www/www-root/data/www/server-expert.com/catalog/index.php:10
#37: include_once(string)
	/var/www/www-root/data/www/server-expert.com/bitrix/modules/main/include/urlrewrite.php:159
#38: include_once(string)
	/var/www/www-root/data/www/server-expert.com/bitrix/urlrewrite.php:2

Fatal error: Uncaught Bitrix\Main\DB\SqlQueryException: Mysql query error: (2006) MySQL server has gone away in /var/www/www-root/data/www/server-expert.com/bitrix/modules/main/lib/db/mysqliconnection.php:137 Stack trace: #0 /var/www/www-root/data/www/server-expert.com/bitrix/modules/main/lib/db/connection.php(330): Bitrix\Main\DB\MysqliConnection->queryInternal('SELECT \n\t`main_...', Array, NULL) #1 /var/www/www-root/data/www/server-expert.com/bitrix/modules/main/lib/orm/query/query.php(3398): Bitrix\Main\DB\Connection->query('SELECT \n\t`main_...') #2 /var/www/www-root/data/www/server-expert.com/bitrix/modules/main/lib/orm/query/query.php(825): Bitrix\Main\ORM\Query\Query->query('SELECT \n\t`main_...') #3 /var/www/www-root/data/www/server-expert.com/bitrix/modules/main/lib/orm/data/datamanager.php(500): Bitrix\Main\ORM\Query\Query->exec() #4 /var/www/www-root/data/www/server-expert.com/bitrix/modules/main/lib/analytics/sitespeed.php(95): Bitrix\Main\ORM\Data\DataManager::getList(Array) #5 /var/www/www-root/data/www/ser in /var/www/www-root/data/www/server-expert.com/bitrix/modules/main/lib/db/mysqliconnection.php on line 137