Каталог мебели ЕВТУ ПЛЮС

[Error] 
Using $this when not in object context (0)
/home/bitrix/www/bitrix/modules/iblock/classes/mysql/iblockelement.php:577
#0: CIBlockElement::GetList
	/home/bitrix/www/bitrix/modules/catalog/general/discount.php:2914
#1: CAllCatalogDiscount::SetDiscountProductCache
	/home/bitrix/www/bitrix/components/bitrix/catalog.top/component.php:647
#2: include(string)
	/home/bitrix/www/bitrix/modules/main/classes/general/component.php:548
#3: CBitrixComponent->__includeComponent
	/home/bitrix/www/bitrix/modules/main/classes/general/component.php:600
#4: CBitrixComponent->includeComponent
	/home/bitrix/www/bitrix/modules/main/classes/general/main.php:1035
#5: CAllMain->IncludeComponent
	/home/bitrix/www/bitrix/templates/evtuplus.by/components/bitrix/catalog/evtuplus_catalog/sections.php:71
#6: include(string)
	/home/bitrix/www/bitrix/modules/main/classes/general/component_template.php:714
#7: CBitrixComponentTemplate->__IncludePHPTemplate
	/home/bitrix/www/bitrix/modules/main/classes/general/component_template.php:806
#8: CBitrixComponentTemplate->IncludeTemplate
	/home/bitrix/www/bitrix/modules/main/classes/general/component.php:681
#9: CBitrixComponent->showComponentTemplate
	/home/bitrix/www/bitrix/modules/main/classes/general/component.php:629
#10: CBitrixComponent->includeComponentTemplate
	/home/bitrix/www/bitrix/components/bitrix/catalog/component.php:148
#11: include(string)
	/home/bitrix/www/bitrix/modules/main/classes/general/component.php:548
#12: CBitrixComponent->__includeComponent
	/home/bitrix/www/bitrix/modules/main/classes/general/component.php:600
#13: CBitrixComponent->includeComponent
	/home/bitrix/www/bitrix/modules/main/classes/general/main.php:1035
#14: CAllMain->IncludeComponent
	/home/bitrix/www/catalog/index.php:242