[Error] 
Class 'PHPMailer' not found (0)
/home/bitrix/www/bitrix/php_interface/init.php:35
#0: include_once
	/home/bitrix/www/bitrix/modules/main/include.php:234
#1: require_once(string)
	/home/bitrix/www/bitrix/modules/main/include/prolog_before.php:14
#2: require(string)
	/home/bitrix/www/404.php:2
#3: include_once(string)
	/home/bitrix/www/bitrix/urlrewrite.php:4