[Bitrix\Main\DB\ConnectionException] 
Mysql connect error [localhost]: (2002) Connection refused (400)
/home/bitrix/ext_www/shonada.com/bitrix/modules/main/lib/db/mysqliconnection.php:65
#0: Bitrix\Main\DB\MysqliConnection->connectInternal()
	/home/bitrix/ext_www/shonada.com/bitrix/modules/main/lib/data/connection.php:53
#1: Bitrix\Main\Data\Connection->getResource()
	/home/bitrix/ext_www/shonada.com/bitrix/modules/main/lib/db/mysqlisqlhelper.php:21
#2: Bitrix\Main\DB\MysqliSqlHelper->forSql(string, NULL)
	/home/bitrix/ext_www/shonada.com/bitrix/modules/main/lib/db/sqlhelper.php:523
#3: Bitrix\Main\DB\SqlHelper->convertToDbString(string)
	/home/bitrix/ext_www/shonada.com/bitrix/modules/main/lib/orm/fields/stringfield.php:142
#4: Bitrix\Main\ORM\Fields\StringField->convertValueToDb(string)
	/home/bitrix/ext_www/shonada.com/bitrix/modules/main/lib/orm/query/filter/conditiontree.php:650
#5: Bitrix\Main\ORM\Query\Filter\ConditionTree->convertValue(string, object)
	/home/bitrix/ext_www/shonada.com/bitrix/modules/main/lib/orm/query/filter/conditiontree.php:488
#6: Bitrix\Main\ORM\Query\Filter\ConditionTree->getSql(array)
	/home/bitrix/ext_www/shonada.com/bitrix/modules/main/lib/orm/query/query.php:2082
#7: Bitrix\Main\ORM\Query\Query->buildWhere()
	/home/bitrix/ext_www/shonada.com/bitrix/modules/main/lib/orm/query/query.php:2303
#8: Bitrix\Main\ORM\Query\Query->buildQuery()
	/home/bitrix/ext_www/shonada.com/bitrix/modules/main/lib/orm/query/query.php:806
#9: Bitrix\Main\ORM\Query\Query->exec()
	/home/bitrix/ext_www/shonada.com/bitrix/modules/main/lib/orm/query/query.php:883
#10: Bitrix\Main\ORM\Query\Query->fetchObject()
	/home/bitrix/ext_www/shonada.com/local/modules/sg.stock/lib/discountmanager.php:158
#11: Sg\Stock\DiscountManager::grantUtmAccess(string)
	/home/bitrix/ext_www/shonada.com/local/php_interface/init.php:25
#12: include_once(string)
	/home/bitrix/ext_www/shonada.com/bitrix/modules/main/include.php:241
#13: require_once(string)
	/home/bitrix/ext_www/shonada.com/bitrix/modules/main/include/prolog_before.php:14
#14: require_once(string)
	/home/bitrix/ext_www/shonada.com/bitrix/modules/main/include/prolog.php:10
#15: require_once(string)
	/home/bitrix/ext_www/shonada.com/bitrix/header.php:1
#16: require(string)
	/home/bitrix/ext_www/shonada.com/index.php:2
#17: include_once(string)
	/home/bitrix/ext_www/shonada.com/bitrix/modules/main/include/urlrewrite.php:159
#18: include_once(string)
	/home/bitrix/ext_www/shonada.com/bitrix/urlrewrite.php:2