[Bitrix\Main\DB\ConnectionException] 
Mysql connect error [localhost]: (2002) Connection refused (400)
/srv/rus.coop/bitrix/modules/main/lib/db/mysqliconnection.php:65
#0: Bitrix\Main\DB\MysqliConnection->connectInternal
	/srv/rus.coop/bitrix/modules/main/lib/db/mysqliconnection.php:122
#1: Bitrix\Main\DB\MysqliConnection->queryInternal
	/srv/rus.coop/bitrix/modules/main/lib/db/connection.php:330
#2: Bitrix\Main\DB\Connection->query
	/srv/rus.coop/bitrix/modules/main/lib/orm/query/query.php:3538
#3: Bitrix\Main\ORM\Query\Query->query
	/srv/rus.coop/bitrix/modules/main/lib/orm/query/query.php:949
#4: Bitrix\Main\ORM\Query\Query->exec
	/srv/rus.coop/bitrix/modules/main/lib/orm/data/datamanager.php:500
#5: Bitrix\Main\ORM\Data\DataManager::getList
	/srv/rus.coop/bitrix/modules/main/lib/orm/data/datamanager.php:410
#6: Bitrix\Main\ORM\Data\DataManager::getRow
	/srv/rus.coop/bitrix/modules/main/lib/site.php:26
#7: Bitrix\Main\SiteTable::getDocumentRoot
	/srv/rus.coop/bitrix/modules/rest/lib/marketplace/url.php:77
#8: Bitrix\Rest\Marketplace\Urls\Templates->getDir
	/srv/rus.coop/bitrix/modules/rest/lib/marketplace/url.php:93
#9: Bitrix\Rest\Marketplace\Urls\Templates->getReplacedId
	/srv/rus.coop/bitrix/modules/rest/lib/marketplace/url.php:125
#10: Bitrix\Rest\Marketplace\Urls\Marketplace->getCategoryUrl
	/srv/rus.coop/bitrix/modules/rest/lib/marketplace/url.php:393
#11: Bitrix\Rest\Marketplace\Url::getCategoryUrl
	/srv/rus.coop/bitrix/modules/rest/include.php:30
#12: include_once(string)
	/srv/rus.coop/bitrix/modules/main/lib/loader.php:184
#13: Bitrix\Main\Loader::includeModuleInternal
	/srv/rus.coop/bitrix/modules/main/lib/loader.php:140
#14: Bitrix\Main\Loader::includeModule
	/srv/rus.coop/bitrix/modules/main/classes/general/module.php:251
#15: CModule::IncludeModule
	/srv/rus.coop/bitrix/modules/main/classes/general/module.php:434
#16: ExecuteModuleEventEx
	/srv/rus.coop/bitrix/modules/main/include.php:470
#17: require_once(string)
	/srv/rus.coop/bitrix/modules/main/include/prolog_before.php:14
#18: require_once(string)
	/srv/rus.coop/bitrix/modules/main/include/prolog.php:10
#19: require_once(string)
	/srv/rus.coop/bitrix/header.php:1
#20: require(string)
	/srv/rus.coop/ru/other/index.php:2