Ошибка при добавлении правила корзины

Добрый день, Сергей!

Пытаемся отобразить бонусную систему. Модуль работает в тестовом периоде, обновлён до последней версии.

По инструкции добавили платёжную систему и правило корзины. Без правила корзины ошибка не возникает, но бонусную систему при оформлении заказа не отображает.
Если правило корзины активировать, то получаем следующую ошибку:
[Error]
Class "Grain\IikoCard\Modifier" not found (0)
/var/www/kpeatopcom/data/www/pizzagoldsushi.kpeatop.com/bitrix/modules/grain.iikocard/include.php:1
#0: Grain\IikoCard\Helper::applyDiscountToBasket(array, array, string)
/var/www/kpeatopcom/data/www/pizzagoldsushi.kpeatop.com/bitrix/modules/sale/lib/discountbase.php(5564) : eval()'d code:2
#1: Bitrix\Sale\DiscountBase->{closure}(array)
/var/www/kpeatopcom/data/www/pizzagoldsushi.kpeatop.com/bitrix/modules/sale/lib/discountbase.php:2282
#2: Bitrix\Sale\DiscountBase->applySaleDiscount()
/var/www/kpeatopcom/data/www/pizzagoldsushi.kpeatop.com/bitrix/modules/sale/lib/discountbase.php:4723
#3: Bitrix\Sale\DiscountBase->executeDiscountList()
/var/www/kpeatopcom/data/www/pizzagoldsushi.kpeatop.com/bitrix/modules/sale/lib/discountbase.php:1324
#4: Bitrix\Sale\DiscountBase->calculateFull()
/var/www/kpeatopcom/data/www/pizzagoldsushi.kpeatop.com/bitrix/modules/sale/lib/discountbase.php:490
#5: Bitrix\Sale\DiscountBase->calculate()
/var/www/kpeatopcom/data/www/pizzagoldsushi.kpeatop.com/bitrix/components/intec.universe/sale.basket.small/class.php:314
#6: IntecSaleBasketSmallComponent->getBasketItemsPriceBase()
/var/www/kpeatopcom/data/www/pizzagoldsushi.kpeatop.com/bitrix/components/intec.universe/sale.basket.small/class.php:92
#7: IntecSaleBasketSmallComponent->getBasketItems(array)
/var/www/kpeatopcom/data/www/pizzagoldsushi.kpeatop.com/bitrix/components/intec.universe/sale.basket.small/class.php:339
#8: IntecSaleBasketSmallComponent->executeComponent()
/var/www/kpeatopcom/data/www/pizzagoldsushi.kpeatop.com/bitrix/modules/main/classes/general/component.php:668
#9: CBitrixComponent->includeComponent(string, array, boolean, boolean)
/var/www/kpeatopcom/data/www/pizzagoldsushi.kpeatop.com/bitrix/modules/main/classes/general/main.php:1188
#10: CAllMain->IncludeComponent(string, string, array, boolean)
/var/www/kpeatopcom/data/www/pizzagoldsushi.kpeatop.com/include/header/basket/fixed/template.2.php:9
#11: include(string)
/var/www/kpeatopcom/data/www/pizzagoldsushi.kpeatop.com/bitrix/components/bitrix/main.include/templates/.default/template.php:17
#12: include(string)
/var/www/kpeatopcom/data/www/pizzagoldsushi.kpeatop.com/bitrix/modules/main/classes/general/component_template.php:790
#13: CBitrixComponentTemplate->__IncludePHPTemplate(array, array, string)
/var/www/kpeatopcom/data/www/pizzagoldsushi.kpeatop.com/bitrix/modules/main/classes/general/component_template.php:885
#14: CBitrixComponentTemplate->IncludeTemplate(array)
/var/www/kpeatopcom/data/www/pizzagoldsushi.kpeatop.com/bitrix/modules/main/classes/general/component.php:784
#15: CBitrixComponent->showComponentTemplate()
/var/www/kpeatopcom/data/www/pizzagoldsushi.kpeatop.com/bitrix/modules/main/classes/general/component.php:724
#16: CBitrixComponent->includeComponentTemplate()
/var/www/kpeatopcom/data/www/pizzagoldsushi.kpeatop.com/bitrix/components/bitrix/main.include/component.php:283
#17: include(string)
/var/www/kpeatopcom/data/www/pizzagoldsushi.kpeatop.com/bitrix/modules/main/classes/general/component.php:615
#18: CBitrixComponent->__includeComponent()
/var/www/kpeatopcom/data/www/pizzagoldsushi.kpeatop.com/bitrix/modules/main/classes/general/component.php:692
#19: CBitrixComponent->includeComponent(string, array, boolean, boolean)
/var/www/kpeatopcom/data/www/pizzagoldsushi.kpeatop.com/bitrix/modules/main/classes/general/main.php:1188
#20: CAllMain->IncludeComponent(string, string, array, boolean, array)
/var/www/kpeatopcom/data/www/pizzagoldsushi.kpeatop.com/bitrix/templates/food_s1/parts/layout.php:53
#21: require(string)
/var/www/kpeatopcom/data/www/pizzagoldsushi.kpeatop.com/bitrix/templates/food_s1/layouts/wide/template.php:24
#22: intec\constructor\models\build\layout\Renderer->{closure}(string)
/var/www/kpeatopcom/data/www/pizzagoldsushi.kpeatop.com/bitrix/templates/food_s1/layouts/wide/template.php:65
#23: include(string)
/var/www/kpeatopcom/data/www/pizzagoldsushi.kpeatop.com/bitrix/modules/intec.constructorlite/classes/models/build/layout/Renderer.php:62
#24: intec\constructor\models\build\layout\Renderer->render()
/var/www/kpeatopcom/data/www/pizzagoldsushi.kpeatop.com/bitrix/modules/intec.constructorlite/classes/models/build/Layout.php:178
#25: intec\constructor\models\build\Layout->render(object, object)
/var/www/kpeatopcom/data/www/pizzagoldsushi.kpeatop.com/bitrix/templates/food_s1/parts/lite/header.php:173
#26: {closure}(string)
/var/www/kpeatopcom/data/www/pizzagoldsushi.kpeatop.com/bitrix/templates/food_s1/parts/lite/header.php:174
#27: include(string)
/var/www/kpeatopcom/data/www/pizzagoldsushi.kpeatop.com/bitrix/templates/food_s1/header.php:103
#28: include_once(string)
/var/www/kpeatopcom/data/www/pizzagoldsushi.kpeatop.com/bitrix/modules/main/include/prolog_after.php:88
#29: require(string)
/var/www/kpeatopcom/data/www/pizzagoldsushi.kpeatop.com/bitrix/modules/main/include/prolog.php:11
#30: require_once(string)
/var/www/kpeatopcom/data/www/pizzagoldsushi.kpeatop.com/bitrix/header.php:2
#31: require_once(string)
/var/www/kpeatopcom/data/www/pizzagoldsushi.kpeatop.com/basket-iko/index.php:6
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Подскажите, что вызывает ошибку и что делаем не так?