[Bitrix\Main\DB\SqlQueryException] 
Mysql query error: (2006) MySQL server has gone away (400)
SELECT 
	`cities`.`ID` AS `ID`,
	`cities`.`UF_NAME` AS `UF_NAME`,
	`cities`.`UF_LOCATION_ID` AS `UF_LOCATION_ID`,
	`cities`.`UF_CITY_CODE` AS `UF_CITY_CODE`,
	`cities`.`UF_STORES_BY_CITY` AS `UF_STORES_BY_CITY`,
	`cities`.`UF_WAREHOUSE_XML_ID` AS `UF_WAREHOUSE_XML_ID`,
	`cities`.`UF_PAY_SYSTEMS_ID` AS `UF_PAY_SYSTEMS_ID`,
	`cities`.`UF_DELIVERY_BY_CITY` AS `UF_DELIVERY_BY_CITY`
FROM `m_cities` `cities` 

/home/www/euromebel/data/www/euromebel.kz/bitrix/modules/main/lib/db/mysqliconnection.php:137
#0: Bitrix\Main\DB\MysqliConnection->queryInternal(string, array, NULL)
	/home/www/euromebel/data/www/euromebel.kz/bitrix/modules/main/lib/db/connection.php:330
#1: Bitrix\Main\DB\Connection->query(string)
	/home/www/euromebel/data/www/euromebel.kz/bitrix/modules/main/lib/orm/query/query.php:3304
#2: Bitrix\Main\ORM\Query\Query->query(string)
	/home/www/euromebel/data/www/euromebel.kz/bitrix/modules/main/lib/orm/query/query.php:816
#3: Bitrix\Main\ORM\Query\Query->exec()
	/home/www/euromebel/data/www/euromebel.kz/bitrix/modules/main/lib/orm/data/datamanager.php:500
#4: Bitrix\Main\ORM\Data\DataManager::getList(array)
	/home/www/euromebel/data/www/euromebel.kz/local/modules/aniart.main/lib/ext/highload.php:24
#5: Aniart\Main\Ext\Highload::getDataFromHL(integer, array, array)
	/home/www/euromebel/data/www/euromebel.kz/local/modules/aniart.main/lib/ext/highload.php:51
#6: Aniart\Main\Ext\Highload::getListCityFromHL(integer, array, array, string)
	/home/www/euromebel/data/www/euromebel.kz/local/modules/aniart.main/lib/ext/city.php:89
#7: Aniart\Main\Ext\City->getFullListCities(string)
	/home/www/euromebel/data/www/euromebel.kz/local/modules/aniart.main/lib/ext/city.php:7
#8: Aniart\Main\Ext\City->__construct()
	/home/www/euromebel/data/www/euromebel.kz/local/modules/aniart.main/lib/ext/city.php:19
#9: Aniart\Main\Ext\City::getInstance()
	/home/www/euromebel/data/www/euromebel.kz/local/modules/aniart.main/include.php:343
#10: include_once(string)
	/home/www/euromebel/data/www/euromebel.kz/bitrix/modules/main/lib/loader.php:143
#11: Bitrix\Main\Loader::includeModuleInternal(string)
	/home/www/euromebel/data/www/euromebel.kz/bitrix/modules/main/lib/loader.php:110
#12: Bitrix\Main\Loader::includeModule(string)
	/home/www/euromebel/data/www/euromebel.kz/local/php_interface/init.php:5
#13: include_once(string)
	/home/www/euromebel/data/www/euromebel.kz/bitrix/modules/main/include.php:241
#14: require_once(string)
	/home/www/euromebel/data/www/euromebel.kz/bitrix/modules/main/include/prolog_before.php:14
#15: require_once(string)
	/home/www/euromebel/data/www/euromebel.kz/bitrix/modules/main/include/prolog.php:10
#16: require_once(string)
	/home/www/euromebel/data/www/euromebel.kz/bitrix/header.php:1
#17: require(string)
	/home/www/euromebel/data/www/euromebel.kz/blog/index.php:2
#18: include_once(string)
	/home/www/euromebel/data/www/euromebel.kz/bitrix/modules/main/include/urlrewrite.php:159
#19: include_once(string)
	/home/www/euromebel/data/www/euromebel.kz/bitrix/urlrewrite.php:2