[Bitrix\Main\DB\ConnectionException] 
Mysql connect error [localhost]: (2002) Connection refused (400)
/home/bitrix/www/bitrix/modules/main/lib/db/mysqliconnection.php:65
#0: Bitrix\Main\DB\MysqliConnection->connectInternal()
	/home/bitrix/www/bitrix/modules/main/lib/db/mysqliconnection.php:122
#1: Bitrix\Main\DB\MysqliConnection->queryInternal(string, array, NULL)
	/home/bitrix/www/bitrix/modules/main/lib/db/connection.php:330
#2: Bitrix\Main\DB\Connection->query(string)
	/home/bitrix/www/bitrix/modules/main/lib/orm/query/query.php:3357
#3: Bitrix\Main\ORM\Query\Query->query(string)
	/home/bitrix/www/bitrix/modules/main/lib/orm/query/query.php:825
#4: Bitrix\Main\ORM\Query\Query->exec()
	/home/bitrix/www/bitrix/modules/main/lib/orm/data/datamanager.php:500
#5: Bitrix\Main\ORM\Data\DataManager::getList(array)
	/home/bitrix/www/local/modules/hickory.elex/lib/location.php:416
#6: Hickory\Elex\Location::loadLocation(integer)
	/home/bitrix/www/local/modules/hickory.elex/lib/location.php:380
#7: Hickory\Elex\Location::loadById(integer)
	/home/bitrix/www/local/modules/hickory.elex/lib/location.php:309
#8: Hickory\Elex\Location->loadData()
	/home/bitrix/www/local/modules/hickory.elex/lib/location.php:57
#9: Hickory\Elex\Location->__construct()
	/home/bitrix/www/local/modules/hickory.elex/lib/location.php:64
#10: Hickory\Elex\Location::getInstance()
	/home/bitrix/www/local/modules/hickory.elex/lib/elex.php:33
#11: Hickory\Elex->setLocation()
	/home/bitrix/www/local/modules/hickory.elex/lib/elex.php:15
#12: Hickory\Elex->__construct()
	/home/bitrix/www/local/modules/hickory.elex/lib/elex.php:25
#13: Hickory\Elex::getInstance()
	/home/bitrix/www/local/php_interface/init.php:13
#14: include_once(string)
	/home/bitrix/www/bitrix/modules/main/include.php:241
#15: require_once(string)
	/home/bitrix/www/bitrix/modules/main/include/prolog_before.php:14
#16: require_once(string)
	/home/bitrix/www/bitrix/modules/main/include/prolog.php:10
#17: require_once(string)
	/home/bitrix/www/bitrix/header.php:1
#18: require(string)
	/home/bitrix/www/catalog/index.php:1
#19: include_once(string)
	/home/bitrix/www/bitrix/modules/main/include/urlrewrite.php:159
#20: include_once(string)
	/home/bitrix/www/bitrix/urlrewrite.php:2