tt<pre>[Error] 
Class 'CMain' not found (0)
/home/bitrix/www/bitrix/modules/main/include.php:28
#0: require_once
	/home/bitrix/www/bitrix/modules/main/include/prolog_before.php:14
#1: require_once(string)
	/home/bitrix/www/bitrix/modules/main/include/prolog.php:10
#2: require_once(string)
	/home/bitrix/www/bitrix/header.php:1
#3: require(string)
	/home/bitrix/www/index.php:2
</pre>