[Error] 
Call to a member function IsAdmin() on null (0)
/home/bitrix/www/local/php_interface/functions.php:6
#0: pRU(object)
	/home/bitrix/www/bitrix/modules/main/lib/entity/datamanager.php:259
#1: Bitrix\Main\Entity\DataManager::getList(array)
	/home/bitrix/www/local/php_interface/init.php:11
#2: include_once(string)
	/home/bitrix/www/bitrix/modules/main/include.php:232
#3: require_once(string)
	/home/bitrix/www/bitrix/modules/main/include/prolog_before.php:14
#4: require_once(string)
	/home/bitrix/www/bitrix/modules/main/include/prolog.php:10
#5: require_once(string)
	/home/bitrix/www/bitrix/header.php:1
#6: require(string)
	/home/bitrix/www/catalog/index.php:2
#7: include_once(string)
	/home/bitrix/www/bitrix/modules/main/include/urlrewrite.php:159
#8: include_once(string)
	/home/bitrix/www/bitrix/urlrewrite.php:2