[Bitrix\Main\DB\SqlQueryException] 
Mysql query error: (2006) MySQL server has gone away (400)
SELECT 
	`m_ar_ka`.`UF_XML_ID` AS `UF_XML_ID`,
	`m_ar_ka`.`UF_NAME` AS `UF_NAME`,
	`m_ar_ka`.`UF_FILE` AS `UF_FILE`,
	`m_ar_ka`.`UF_SORT` AS `UF_SORT`,
	`m_ar_ka`.`ID` AS `UALIAS_0`
FROM `b_marka` `m_ar_ka` 

WHERE `m_ar_ka`.`UF_XML_ID` = '1dd20070-c490-11e7-8608-f44d3066b7eb'
ORDER BY `UF_SORT` ASC, `UF_NAME` ASC, `UALIAS_0` ASC
/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/orm/query/query.php:3357
#2: Bitrix\Main\ORM\Query\Query->query(string)
	/home/bitrix/www/bitrix/modules/main/lib/orm/query/query.php:825
#3: Bitrix\Main\ORM\Query\Query->exec()
	/home/bitrix/www/bitrix/modules/main/lib/orm/data/datamanager.php:500
#4: Bitrix\Main\ORM\Data\DataManager::getList(array)
	/home/bitrix/www/bitrix/modules/highloadblock/classes/general/prop_directory.php:808
#5: CIBlockPropertyDirectory::getEntityFieldsByFilter(string, array)
	/home/bitrix/www/bitrix/modules/highloadblock/classes/general/prop_directory.php:535
#6: CIBlockPropertyDirectory::GetExtendedValue(array, array)
	/home/bitrix/www/bitrix/components/bitrix/catalog.smart.filter/class.php:748
#7: CBitrixCatalogSmartFilter->fillItemValues(array, array)
	/home/bitrix/www/bitrix/components/bitrix/catalog.smart.filter/component.php:229
#8: include(string)
	/home/bitrix/www/bitrix/modules/main/classes/general/component.php:605
#9: CBitrixComponent->__includeComponent()
	/home/bitrix/www/bitrix/modules/main/classes/general/component.php:103
#10: CBitrixComponent->executeComponent()
	/home/bitrix/www/bitrix/components/bitrix/catalog.smart.filter/class.php:138
#11: CBitrixCatalogSmartFilter->executeComponent()
	/home/bitrix/www/bitrix/modules/main/classes/general/component.php:656
#12: CBitrixComponent->includeComponent(string, array, object, boolean)
	/home/bitrix/www/bitrix/modules/main/classes/general/main.php:1039
#13: CAllMain->IncludeComponent(string, string, array, object, array)
	/home/bitrix/www/local/templates/main/components/bitrix/catalog/.default/section.php:150
#14: include(string)
	/home/bitrix/www/bitrix/modules/main/classes/general/component_template.php:789
#15: CBitrixComponentTemplate->__IncludePHPTemplate(array, array, string)
	/home/bitrix/www/bitrix/modules/main/classes/general/component_template.php:884
#16: CBitrixComponentTemplate->IncludeTemplate(array)
	/home/bitrix/www/bitrix/modules/main/classes/general/component.php:764
#17: CBitrixComponent->showComponentTemplate()
	/home/bitrix/www/bitrix/modules/main/classes/general/component.php:712
#18: CBitrixComponent->includeComponentTemplate(string)
	/home/bitrix/www/local/components/bitrix/catalog/component.php:170
#19: include(string)
	/home/bitrix/www/bitrix/modules/main/classes/general/component.php:605
#20: CBitrixComponent->__includeComponent()
	/home/bitrix/www/bitrix/modules/main/classes/general/component.php:680
#21: CBitrixComponent->includeComponent(string, array, boolean, boolean)
	/home/bitrix/www/bitrix/modules/main/classes/general/main.php:1039
#22: CAllMain->IncludeComponent(string, string, array, boolean)
	/home/bitrix/www/catalog/index.php:698
#23: include_once(string)
	/home/bitrix/www/bitrix/modules/main/include/urlrewrite.php:159
#24: include_once(string)
	/home/bitrix/www/bitrix/urlrewrite.php:2

( ! ) Fatal error: Uncaught Bitrix\Main\DB\SqlQueryException: Mysql query error: (2006) MySQL server has gone away in /home/bitrix/www/bitrix/modules/main/lib/db/mysqliconnection.php on line 137
Call Stack
#TimeMemoryFunctionLocation
116.36688653024Bitrix\Main\Diag\ExceptionHandler->handleException( ).../exceptionhandler.php:0
( ! ) Bitrix\Main\DB\SqlQueryException: Mysql query error: (2006) MySQL server has gone away in /home/bitrix/www/bitrix/modules/main/lib/db/mysqliconnection.php on line 137
Call Stack
#TimeMemoryFunctionLocation
116.36688653024Bitrix\Main\Diag\ExceptionHandler->handleException( ).../exceptionhandler.php:0
216.43318655504CAllMain::{closure:/home/bitrix/www/bitrix/modules/main/classes/general/main.php:3412-3419}( ).../main.php:0
316.43318622512ob_end_flush ( ).../main.php:3417
416.43318626640CMain->EndBufferContent( ).../main.php:3417
516.43328628064ExecuteModuleEventEx( ).../main.php:3165
616.43328628360Bitrix\Main\Analytics\Counter::onBeforeEndBufferContent( ).../module.php:480
716.44338628808Bitrix\Main\Analytics\SiteSpeed::isIntranetSite( ).../counter.php:92
816.44348638040Bitrix\Main\ORM\Data\DataManager::getList( ).../sitespeed.php:95
916.44418655800Bitrix\Main\ORM\Query\Query->exec( ).../datamanager.php:500
1016.44458659328Bitrix\Main\ORM\Query\Query->query( ).../query.php:825
1116.44458659328Bitrix\Main\DB\MysqliConnection->query( ).../query.php:3357
1216.44458659328Bitrix\Main\DB\MysqliConnection->queryInternal( ).../connection.php:330