[Error] 
Call to a member function IsAdmin() on null (0)
/home/bitrix/www/bitrix/templates/.default/header.php:14
#0: include
	/home/bitrix/www/bitrix/php_interface/init.php:14
#1: _Check404Error()
	/home/bitrix/www/bitrix/modules/main/classes/general/module.php:465
#2: ExecuteModuleEventEx(array)
	/home/bitrix/www/bitrix/modules/main/include/epilog_after.php:11
#3: require(string)
	/home/bitrix/www/bitrix/modules/main/include/epilog.php:3
#4: require_once(string)
	/home/bitrix/www/bitrix/footer.php:4
#5: require(string)
	/home/bitrix/www/404.php:28
#6: include_once(string)
	/home/bitrix/www/bitrix/urlrewrite.php:4
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