[Error] 
Class 'Bitrix\Main\Session\SessionConfigurationResolver' not found (0)
/home/bitrix/www/bitrix/modules/main/lib/application.php:137
#0: Bitrix\Main\Application->initializeSessions()
	/home/bitrix/www/bitrix/modules/main/lib/application.php:130
#1: Bitrix\Main\Application->initializeExtendedKernel(array)
	/home/bitrix/www/bitrix/modules/main/include.php:24
#2: require_once(string)
	/home/bitrix/www/bitrix/modules/main/include/prolog_before.php:14
#3: require_once(string)
	/home/bitrix/www/bitrix/modules/main/include/prolog.php:10
#4: require_once(string)
	/home/bitrix/www/bitrix/header.php:1
#5: require(string)
	/home/bitrix/www/index.php:3