[Error] 
Call to a member function calculate() on null (0)
/home/bitrix/ext_www/epusk.ru/bitrix/components/aspro/basket.file.max/class.php:554
#0: CAsproBasketFileMax->makeResult()
	/home/bitrix/ext_www/epusk.ru/bitrix/components/aspro/basket.file.max/class.php:167
#1: CAsproBasketFileMax->downloadAction()
	/home/bitrix/ext_www/epusk.ru/bitrix/components/aspro/basket.file.max/class.php:160
#2: CAsproBasketFileMax->executeComponent()
	/home/bitrix/ext_www/epusk.ru/bitrix/modules/main/classes/general/component.php:656
#3: CBitrixComponent->includeComponent(string, array, boolean, boolean)
	/home/bitrix/ext_www/epusk.ru/bitrix/modules/main/classes/general/main.php:1063
#4: CAllMain->IncludeComponent(string, string, array, boolean, array)
	/home/bitrix/ext_www/epusk.ru/bitrix/components/aspro/basket.file.wrapper.max/templates/.default/template.php:21
#5: include(string)
	/home/bitrix/ext_www/epusk.ru/bitrix/modules/main/classes/general/component_template.php:789
#6: CBitrixComponentTemplate->__IncludePHPTemplate(array, array, string)
	/home/bitrix/ext_www/epusk.ru/bitrix/modules/main/classes/general/component_template.php:884
#7: CBitrixComponentTemplate->IncludeTemplate(array)
	/home/bitrix/ext_www/epusk.ru/bitrix/modules/main/classes/general/component.php:764
#8: CBitrixComponent->showComponentTemplate()
	/home/bitrix/ext_www/epusk.ru/bitrix/modules/main/classes/general/component.php:712
#9: CBitrixComponent->includeComponentTemplate()
	/home/bitrix/ext_www/epusk.ru/bitrix/components/aspro/basket.file.wrapper.max/class.php:87
#10: CAsproBasketFileWrapperMax->mainAction()
	/home/bitrix/ext_www/epusk.ru/bitrix/components/aspro/basket.file.wrapper.max/class.php:80
#11: CAsproBasketFileWrapperMax->executeComponent()
	/home/bitrix/ext_www/epusk.ru/bitrix/modules/main/classes/general/component.php:656
#12: CBitrixComponent->includeComponent(string, array, boolean, boolean)
	/home/bitrix/ext_www/epusk.ru/bitrix/modules/main/classes/general/main.php:1063
#13: CAllMain->IncludeComponent(string, string, array, boolean)
	/home/bitrix/ext_www/epusk.ru/include/comp_basket_file_wrapper.php:10
#14: include(string)
	/home/bitrix/ext_www/epusk.ru/ajax/download_basket.php:7