[Error] 
Call to a member function IsAdmin() on null (0)
/home/bitrix/ext_www/happy-snail.com/local/templates/main/header.php:60
#0: include
	/home/bitrix/ext_www/happy-snail.com/local/php_interface/include/events.php:88
#1: My404PageInSiteStyle
	/home/bitrix/ext_www/happy-snail.com/bitrix/modules/main/classes/general/module.php:467
#2: ExecuteModuleEventEx
	/home/bitrix/ext_www/happy-snail.com/bitrix/modules/main/include/epilog_after.php:11
#3: require(string)
	/home/bitrix/ext_www/happy-snail.com/bitrix/modules/main/include/epilog.php:3
#4: require_once(string)
	/home/bitrix/ext_www/happy-snail.com/bitrix/footer.php:3
#5: require(string)
	/home/bitrix/ext_www/happy-snail.com/404.php:13
#6: include_once(string)
	/home/bitrix/ext_www/happy-snail.com/bitrix/urlrewrite.php:4
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