[Bitrix\Main\DB\SqlQueryException] 
Mysql query error: (2006) MySQL server has gone away (400)
SELECT 
	`iblock_property`.`ID` AS `ID`,
	`iblock_property`.`IBLOCK_ID` AS `IBLOCK_ID`,
	`iblock_property`.`NAME` AS `NAME`,
	`iblock_property`.`ACTIVE` AS `ACTIVE`,
	`iblock_property`.`SORT` AS `SORT`,
	`iblock_property`.`CODE` AS `CODE`,
	`iblock_property`.`DEFAULT_VALUE` AS `DEFAULT_VALUE`,
	`iblock_property`.`PROPERTY_TYPE` AS `PROPERTY_TYPE`,
	`iblock_property`.`MULTIPLE` AS `MULTIPLE`,
	`iblock_property`.`LINK_IBLOCK_ID` AS `LINK_IBLOCK_ID`,
	`iblock_property`.`VERSION` AS `VERSION`,
	`iblock_property`.`USER_TYPE` AS `USER_TYPE`,
	`iblock_property`.`USER_TYPE_SETTINGS` AS `USER_TYPE_SETTINGS`
FROM `b_iblock_property` `iblock_property` 

WHERE (`iblock_property`.`ID` in (292, 294, 295, 300, 301, 302, 303, 306, 307, 310, 311, 320, 321, 323, 324, 325, 326, 366, 367, 408, 409, 585, 964, 965))
AND `iblock_property`.`IBLOCK_ID` = 33
ORDER BY `ID` ASC
/home/bitrix/www/bitrix/modules/main/lib/db/mysqliconnection.php:137
#0: Bitrix\Main\DB\MysqliConnection->queryInternal
	/home/bitrix/www/bitrix/modules/main/lib/db/connection.php:330
#1: Bitrix\Main\DB\Connection->query
	/home/bitrix/www/bitrix/modules/main/lib/orm/query/query.php:3357
#2: Bitrix\Main\ORM\Query\Query->query
	/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
	/home/bitrix/www/bitrix/modules/iblock/classes/general/iblockpropresult.php:261
#5: CIBlockPropertyResult->setIBlock
	/home/bitrix/www/bitrix/modules/iblock/classes/general/iblockelement.php:5405
#6: CAllIBlockElement::GetPropertyValues
	/home/bitrix/www/bitrix/components/w247.catalogs/catalog.smart.filter/component.php:170
#7: include(string)
	/home/bitrix/www/bitrix/modules/main/classes/general/component.php:605
#8: CBitrixComponent->__includeComponent
	/home/bitrix/www/bitrix/modules/main/classes/general/component.php:103
#9: CBitrixComponent->executeComponent
	/home/bitrix/www/bitrix/components/w247.catalogs/catalog.smart.filter/class.php:138
#10: CBitrixCatalogSmartFilter->executeComponent
	/home/bitrix/www/bitrix/modules/main/classes/general/component.php:656
#11: CBitrixComponent->includeComponent
	/home/bitrix/www/bitrix/modules/main/classes/general/main.php:1046
#12: CAllMain->IncludeComponent
	/home/bitrix/www/local/components/w247.catalogs/catalog/templates/.default/section.php:2393
#13: include(string)
	/home/bitrix/www/bitrix/modules/main/classes/general/component_template.php:789
#14: CBitrixComponentTemplate->__IncludePHPTemplate
	/home/bitrix/www/bitrix/modules/main/classes/general/component_template.php:884
#15: CBitrixComponentTemplate->IncludeTemplate
	/home/bitrix/www/bitrix/modules/main/classes/general/component.php:764
#16: CBitrixComponent->showComponentTemplate
	/home/bitrix/www/bitrix/modules/main/classes/general/component.php:712
#17: CBitrixComponent->includeComponentTemplate
	/home/bitrix/www/local/components/w247.catalogs/catalog/class.php:268
#18: W247CatalogsComponent->executeComponent
	/home/bitrix/www/bitrix/modules/main/classes/general/component.php:656
#19: CBitrixComponent->includeComponent
	/home/bitrix/www/bitrix/modules/main/classes/general/main.php:1046
#20: CAllMain->IncludeComponent
	/home/bitrix/www/catalog/index.php:234
#21: include_once(string)
	/home/bitrix/www/bitrix/modules/main/include/urlrewrite.php:159
#22: include_once(string)
	/home/bitrix/www/bitrix/urlrewrite.php:2