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[Error] 
Class 'Sg\Stock\Discount\Manager' not found (0)
/home/bitrix/ext_www/shonada.com/local/templates/newyear/components/bitrix/catalog.section/shop/result_modifier.php:21
#0: include
	/home/bitrix/ext_www/shonada.com/bitrix/modules/main/classes/general/component_template.php:882
#1: CBitrixComponentTemplate->__IncludeMutatorFile(array, array)
	/home/bitrix/ext_www/shonada.com/bitrix/modules/main/classes/general/component_template.php:789
#2: CBitrixComponentTemplate->IncludeTemplate(array)
	/home/bitrix/ext_www/shonada.com/bitrix/modules/main/classes/general/component.php:746
#3: CBitrixComponent->showComponentTemplate()
	/home/bitrix/ext_www/shonada.com/bitrix/modules/main/classes/general/component.php:694
#4: CBitrixComponent->includeComponentTemplate()
	/home/bitrix/ext_www/shonada.com/bitrix/modules/iblock/lib/component/base.php:4463
#5: Bitrix\Iblock\Component\Base->loadData()
	/home/bitrix/ext_www/shonada.com/bitrix/modules/iblock/lib/component/elementlist.php:1201
#6: Bitrix\Iblock\Component\ElementList->loadData()
	/home/bitrix/ext_www/shonada.com/bitrix/modules/iblock/lib/component/base.php:4442
#7: Bitrix\Iblock\Component\Base->initialLoadAction()
	/home/bitrix/ext_www/shonada.com/bitrix/components/bitrix/catalog.section/class.php:333
#8: CatalogSectionComponent->initialLoadAction()
	
#9: call_user_func(array)
	/home/bitrix/ext_www/shonada.com/bitrix/modules/iblock/lib/component/base.php:4627
#10: Bitrix\Iblock\Component\Base->doAction()
	/home/bitrix/ext_www/shonada.com/bitrix/modules/iblock/lib/component/base.php:4645
#11: Bitrix\Iblock\Component\Base->executeComponent()
	/home/bitrix/ext_www/shonada.com/bitrix/modules/main/classes/general/component.php:649
#12: CBitrixComponent->includeComponent(string, array, boolean)
	/home/bitrix/ext_www/shonada.com/bitrix/modules/main/classes/general/main.php:1039
#13: CAllMain->IncludeComponent(string, string, array, boolean)
	/home/bitrix/ext_www/shonada.com/newyear/index.php:250