[Bitrix\Main\DB\ConnectionException] 
Mysql connect error [localhost]: (2002) No such file or directory (400)
/home/site/www/bitrix/modules/main/lib/db/mysqliconnection.php:65
#0: Bitrix\Main\DB\MysqliConnection->connectInternal()
	/home/site/www/bitrix/modules/main/lib/db/mysqliconnection.php:122
#1: Bitrix\Main\DB\MysqliConnection->queryInternal(string, array, NULL)
	/home/site/www/bitrix/modules/main/lib/db/connection.php:330
#2: Bitrix\Main\DB\Connection->query(string)
	/home/site/www/bitrix/modules/artamonov.rest/lib/foundation/config.php:26
#3: Artamonov\Rest\Foundation\Config->get(string)
	/home/site/www/bitrix/modules/artamonov.rest/lib/foundation/core.php:20
#4: Artamonov\Rest\Foundation\Core->run()
	/home/site/www/bitrix/php_interface/init.php:10
#5: include_once(string)
	/home/site/www/bitrix/modules/main/include.php:241
#6: require_once(string)
	/home/site/www/bitrix/modules/main/include/prolog_before.php:14
#7: require_once(string)
	/home/site/www/bitrix/modules/main/include/prolog.php:10
#8: require_once(string)
	/home/site/www/bitrix/header.php:2
#9: require(string)
	/home/site/www/faq/index.php:2
#10: include_once(string)
	/home/site/www/bitrix/modules/main/include/urlrewrite.php:159
#11: include_once(string)
	/home/site/www/bitrix/urlrewrite.php:2