[Bitrix\Main\DB\ConnectionException] 
Mysql connect error [localhost]: (2002) Connection refused (400)
/home/bitrix/www/bitrix/modules/main/lib/db/mysqliconnection.php:82
#0: Bitrix\Main\DB\MysqliConnection->connectInternal
	/home/bitrix/www/bitrix/modules/main/lib/db/mysqliconnection.php:128
#1: Bitrix\Main\DB\MysqliConnection->queryInternal
	/home/bitrix/www/bitrix/modules/main/lib/db/connection.php:327
#2: Bitrix\Main\DB\Connection->query
	/home/bitrix/www/bitrix/modules/security/classes/mysql/database.php:118
#3: CSecurityDB::Query
	/home/bitrix/www/bitrix/modules/security/classes/mysql/database.php:53
#4: CSecurityDB::Init
	/home/bitrix/www/bitrix/modules/security/classes/mysql/database.php:110
#5: CSecurityDB::Query
	/home/bitrix/www/bitrix/modules/security/classes/general/antivirus.php:447
#6: CSecurityAntiVirus->dolog
	/home/bitrix/www/bitrix/modules/security/classes/general/antivirus.php:606
#7: CSecurityAntiVirus->Analyze
	/home/bitrix/www/bitrix/modules/security/classes/general/antivirus.php:199
#8: CSecurityAntiVirus::OnEndBufferContent
	/home/bitrix/www/bitrix/modules/main/classes/general/module.php:480
#9: ExecuteModuleEventEx
	/home/bitrix/www/bitrix/modules/main/classes/general/main.php:3183
#10: CAllMain->EndBufferContent
	/home/bitrix/www/bitrix/modules/main/classes/general/main.php:3130
#11: CAllMain->EndBufferContentMan
	/home/bitrix/www/bitrix/modules/main/include/epilog_after.php:43
#12: require(string)
	/home/bitrix/www/bitrix/modules/main/include/epilog.php:3
#13: require_once(string)
	/home/bitrix/www/bitrix/footer.php:4
#14: require(string)
	/home/bitrix/www/catalog/detail.php:591
#15: include_once(string)
	/home/bitrix/www/bitrix/modules/main/include/urlrewrite.php:184
#16: include_once(string)
	/home/bitrix/www/bitrix/urlrewrite.php:2
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