[Error] 
Call to a member function GetUserGroupArray() on null (0)
/home/c/cc108519/public_html/local/php_interface/init.php:550
#0: SetProductPrice(array)
	/home/c/cc108519/public_html/bitrix/modules/main/classes/general/module.php:475
#1: ExecuteModuleEventEx(array, array)
	/home/c/cc108519/public_html/bitrix/modules/iblock/classes/general/iblockelement.php:3632
#2: CAllIBlockElement->Add(array)
	/home/c/cc108519/public_html/local/php_interface/events.php:273
#3: KokocEventHandlers::MapBrandsTagsIB()
	/home/c/cc108519/public_html/bitrix/modules/main/classes/mysql/agent.php(162) : eval()'d code:1
#4: eval
	/home/c/cc108519/public_html/bitrix/modules/main/classes/mysql/agent.php:162
#5: CAgent::ExecuteAgents(string)
	/home/c/cc108519/public_html/bitrix/modules/main/classes/mysql/agent.php:40
#6: CAgent::CheckAgents()
	/home/c/cc108519/public_html/bitrix/modules/main/include.php:271
#7: require_once(string)
	/home/c/cc108519/public_html/bitrix/modules/main/include/prolog_before.php:14
#8: require(string)
	/home/c/cc108519/public_html/catalog/index.php:1
#9: include_once(string)
	/home/c/cc108519/public_html/bitrix/modules/main/include/urlrewrite.php:159
#10: include_once(string)
	/home/c/cc108519/public_html/bitrix/urlrewrite.php:2