[Bitrix\Main\DB\ConnectionException] 
Mysql connect error [localhost]: (2002) Connection refused (400)
/home/bitrix/www/bitrix/modules/main/lib/db/mysqliconnection.php:86
#0: Bitrix\Main\DB\MysqliConnection->connectInternal
	/home/bitrix/www/bitrix/modules/main/lib/data/connection.php:53
#1: Bitrix\Main\Data\Connection->getResource
	/home/bitrix/www/bitrix/modules/main/lib/db/mysqlisqlhelper.php:406
#2: Bitrix\Main\DB\MysqliSqlHelper->forSql
	/home/bitrix/www/bitrix/modules/main/lib/config/option.php:206
#3: Bitrix\Main\Config\Option::load
	/home/bitrix/www/bitrix/modules/main/lib/config/option.php:83
#4: Bitrix\Main\Config\Option::getRealValue
	/home/bitrix/www/bitrix/modules/main/lib/config/option.php:32
#5: Bitrix\Main\Config\Option::get
	/home/bitrix/www/bitrix/modules/main/lib/httprequest.php:411
#6: Bitrix\Main\HttpRequest->prepareCookie
	/home/bitrix/www/bitrix/modules/main/lib/httprequest.php:70
#7: Bitrix\Main\HttpRequest->__construct
	/home/bitrix/www/bitrix/modules/main/lib/httpapplication.php:44
#8: Bitrix\Main\HttpApplication->initializeContext
	/home/bitrix/www/bitrix/modules/main/lib/application.php:127
#9: Bitrix\Main\Application->initializeExtendedKernel
	/home/bitrix/www/bitrix/modules/main/include.php:22
#10: require_once(string)
	/home/bitrix/www/bitrix/modules/main/include/prolog_before.php:19
#11: require_once(string)
	/home/bitrix/www/bitrix/modules/main/include/prolog.php:10
#12: require_once(string)
	/home/bitrix/www/bitrix/header.php:1
#13: require(string)
	/home/bitrix/www/help/index.php:2
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