????? ???????????

[Error] 
Call to undefined function GetNewPrice() (0)
/var/www/html/bitrix/templates/.default/components/bitrix/catalog.section/catalog_LIST_blueYellow/result_modifier.php:469
#0: include
	/var/www/html/bitrix/modules/main/classes/general/component_template.php:882
#1: CBitrixComponentTemplate->__IncludeMutatorFile(array, array)
	/var/www/html/bitrix/modules/main/classes/general/component_template.php:789
#2: CBitrixComponentTemplate->IncludeTemplate(array)
	/var/www/html/bitrix/modules/main/classes/general/component.php:735
#3: CBitrixComponent->showComponentTemplate()
	/var/www/html/bitrix/modules/main/classes/general/component.php:683
#4: CBitrixComponent->includeComponentTemplate()
	/var/www/html/bitrix/modules/iblock/lib/component/base.php:4408
#5: Bitrix\Iblock\Component\Base->loadData()
	/var/www/html/bitrix/modules/iblock/lib/component/elementlist.php:1167
#6: Bitrix\Iblock\Component\ElementList->loadData()
	/var/www/html/bitrix/modules/iblock/lib/component/base.php:4387
#7: Bitrix\Iblock\Component\Base->initialLoadAction()
	/var/www/html/bitrix/components/bitrix/catalog.section/class.php:333
#8: CatalogSectionComponent->initialLoadAction()
	
#9: call_user_func(array)
	/var/www/html/bitrix/modules/iblock/lib/component/base.php:4572
#10: Bitrix\Iblock\Component\Base->doAction()
	/var/www/html/bitrix/modules/iblock/lib/component/base.php:4590
#11: Bitrix\Iblock\Component\Base->executeComponent()
	/var/www/html/bitrix/modules/main/classes/general/component.php:638
#12: CBitrixComponent->includeComponent(string, array, boolean)
	/var/www/html/bitrix/modules/main/classes/general/main.php:1038
#13: CAllMain->IncludeComponent(string, string, array, boolean, array)
	/var/www/html/novelty/include/new_new.php:258
#14: include(string)
	/var/www/html/bitrix/modules/main/classes/general/main.php:1360
#15: CAllMain->IncludeFile(string, array, array)
	/var/www/html/novelty/index.php:6