[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 (48, 51, 65, 67, 68, 133, 325, 342, 346, 406, 924, 931, 1224, 1794, 1795, 1864, 1868, 1893, 1900, 1902, 1942, 1950, 1952, 1953, 1954, 1955, 1956, 1957, 1958, 1972, 1974, 1975, 1980, 1983, 1984, 1987, 2046, 2047, 2070, 2549, 2552))
AND `iblock_property`.`IBLOCK_ID` = 5
ORDER BY `ID` 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/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/iblock/classes/general/iblockpropresult.php:259
#5: CIBlockPropertyResult->setIBlock(integer, array)
	/home/bitrix/www/bitrix/modules/iblock/classes/general/iblockelement.php:5401
#6: CAllIBlockElement::GetPropertyValues(integer, array, boolean, array)
	/home/bitrix/www/bitrix/components/gorodled/catalog.smart.filter/component.php:128
#7: include(string)
	/home/bitrix/www/bitrix/modules/main/classes/general/component.php:606
#8: CBitrixComponent->__includeComponent()
	/home/bitrix/www/bitrix/modules/main/classes/general/component.php:102
#9: CBitrixComponent->executeComponent()
	/home/bitrix/www/bitrix/components/gorodled/catalog.smart.filter/class.php:129
#10: CBitrixCatalogSmartFilter->executeComponent()
	/home/bitrix/www/bitrix/modules/main/classes/general/component.php:650
#11: CBitrixComponent->includeComponent(string, array, object)
	/home/bitrix/www/bitrix/modules/main/classes/general/main.php:1037
#12: CAllMain->IncludeComponent(string, string, array, object, array)
	/home/bitrix/www/local/templates/.default/components/bitrix/catalog/gl_catalog/section.php:404
#13: include(string)
	/home/bitrix/www/bitrix/modules/main/classes/general/component_template.php:720
#14: CBitrixComponentTemplate->__IncludePHPTemplate(array, array, string)
	/home/bitrix/www/bitrix/modules/main/classes/general/component_template.php:815
#15: CBitrixComponentTemplate->IncludeTemplate(array)
	/home/bitrix/www/bitrix/modules/main/classes/general/component.php:747
#16: CBitrixComponent->showComponentTemplate()
	/home/bitrix/www/bitrix/modules/main/classes/general/component.php:695
#17: CBitrixComponent->includeComponentTemplate(string)
	/home/bitrix/www/bitrix/components/bitrix/catalog/component.php:171
#18: include(string)
	/home/bitrix/www/bitrix/modules/main/classes/general/component.php:606
#19: CBitrixComponent->__includeComponent()
	/home/bitrix/www/bitrix/modules/main/classes/general/component.php:665
#20: CBitrixComponent->includeComponent(string, array, boolean)
	/home/bitrix/www/bitrix/modules/main/classes/general/main.php:1037
#21: CAllMain->IncludeComponent(string, string, array, boolean)
	/home/bitrix/www/catalog/index.php:1383
#22: include_once(string)
	/home/bitrix/www/bitrix/modules/main/include/urlrewrite.php:159
#23: 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:137 Stack trace: #0 /home/bitrix/www/bitrix/modules/main/lib/db/mysqlcommonconnection.php(132): Bitrix\Main\DB\MysqliConnection->queryInternal('SELECT * FROM `...') #1 /home/bitrix/www/bitrix/modules/main/lib/db/connection.php(716): Bitrix\Main\DB\MysqlCommonConnection->getTableFields('b_sec_session') #2 /home/bitrix/www/bitrix/modules/main/lib/db/sqlhelper.php(387): Bitrix\Main\DB\Connection->getTableField('b_sec_session', 'SESSION_ID') #3 /home/bitrix/www/bitrix/modules/main/lib/entity/datamanager.php(975): Bitrix\Main\DB\SqlHelper->prepareAssignment('b_sec_session', 'SESSION_ID', '2NLIdEXUQEvouRI...') #4 /home/bitrix/www/bitrix/modules/security/classes/general/session_db.php(92): Bitrix\Main\Entity\DataManager::delete(Array) #5 [internal function]: CSecuritySessionDB::write('2NLIdEXUQEvouRI...', 'SESS_AUTH|a:1:{...') #6 [internal function]: sess in /home/bitrix/www/bitrix/modules/main/lib/db/mysqliconnection.php on line 137